linuxcommand-discuss

[Linuxcommand-discuss] shell printf function

[Bram M. <bra...@li...>]

Hi,

The signature at the end of this message is generated by two little
shell-scripts I wrote:
---sig-linux---
#!/bin/bash

echo '<pre>-- '
echo '#  Mertens Bram "M8ram" &lt;bra...@li...&gt;   Linux User
#249103  #'
/home/m8ram/bin/sig-general
---end---
---sig-general---
#!/bin/bash
current_uptime=$(uptime)
current_kernel=$(uname -r)
current_machine=$(uname -m)
current_release="SuSE 8.1 Pro"

echo -n '# '; echo -n $current_release; echo -n ' kernel '; echo -n
$current_kernel; echo -n ' '; echo -n $current_machine; echo ' 128MB RAM
#'
echo -n '#  '; echo -n $current_uptime; echo ' #'
echo '</pre>'
---end---

Unfortunately it still doesn't look very pretty, what I would like is
something like:
---new-sig---
# Mertens Bram "M8ram" <bra...@li...>  Linux User #249103 #
# SuSE 8.1 Pro kernel 2.4.19-4GB i686 128MB RAM                    #
# 1:16am up 12:19, 1 user, load average: 0.06, 0.04, 0.06          #
---end---

Is there a shell-function that allows the output to be of certain length
like printf in C and Perl (IIRC)?
I want all lines to be 78 chars wide, regardless of the kernel-version
or the uptime.

Is this possible with a shell-script? Or should I write a Perl-script?

TIA
-- 
#  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
# SuSE 8.1 Pro kernel 2.4.19-4GB i686 128MB RAM #
#  1:16am up 12:19, 1 user, load average: 0.06, 0.04, 0.06 #

Re: [Linuxcommand-discuss] size of directories

[Mertens B. <bra...@li...>]

On Tue, 2002-12-10 at 14:49, Norman B. Robinson wrote:
> You'll be wanting to take a look at the 'du' command. the '-h' option 
> makes it easier to interpret and the '-c' option gives you a grand total.
> 
> i.e., "du -ch /home/folder1/"
> 
> As always, check the man page for additional details.

Thanks, combined with the -s option to only show the grand total, this
is exactly what I needed!

Regards
-- 
 #  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
 #  Red Hat Linux 7.3  KDE 3.0.0-10  kernel 2.4.18-3  i686  128MB RAM  #
 #  4:33pm up 19:33, 2 users, load average: 0.46, 0.41, 0.37 #

Re: [Linuxcommand-discuss] size of directories

[Norman B. R. <rob...@ze...>]

You'll be wanting to take a look at the 'du' command. the '-h' option 
makes it easier to interpret and the '-c' option gives you a grand total.

i.e., "du -ch /home/folder1/"

As always, check the man page for additional details.

Enjoy,

Norman

Mertens Bram wrote:

>Hi,
>
>Is there a way to get the size of a directory on the command line?
>Right now I open a Nautilus window select the directory and open the
>Preferences window which shows the 'Contents' info: number of files and
>total file size.
>
>Is there any way to do this?
>
>TIA
>  
>

[Linuxcommand-discuss] size of directories

[Mertens B. <bra...@li...>]

Hi,

Is there a way to get the size of a directory on the command line?
Right now I open a Nautilus window select the directory and open the
Preferences window which shows the 'Contents' info: number of files and
total file size.

Is there any way to do this?

TIA
-- 
 #  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
 #  Red Hat Linux 7.3  KDE 3.0.0-10  kernel 2.4.18-3  i686  128MB RAM  #
 #  12:54pm up 15:54, 2 users, load average: 1.30, 0.58, 0.29 #

Re: [Linuxcommand-discuss] how to (and where) create global shell variables

[William S. <bs...@pa...>]

On Sun, 2002-11-24 at 09:49, Mertens Bram wrote:
> Hi,
> 
> There are a couple of directories that I need frequently in certain
> commands (cd, cp, mv,...) is it possible to create variables that hold
> these paths?
> 
> e.g.
> instead of typing: cd /mnt/shared/music/lyrcis
> type: cd $LYRICS  (where $LYRICS is /mnt/shared/music/lyrcis)
> 
> Can I simply add 'LYRICS="/mnt/shared/music/lyrcis"' to my '~/.bashrc'?
> 
> Or is there a better way?
>

Using an environment variable as you describe is a common approach to
this problem.  Another way would be to create aliases for the common
commands you use.
-- 
|||||  William Shotts, Jr. (bshotts AT panix DOT com)
|||||  Be a Linux Commander!  Follow me to http://linuxcommand.org

[Linuxcommand-discuss] how to (and where) create global shell variables

[Mertens B. <bra...@li...>]

Hi,

There are a couple of directories that I need frequently in certain
commands (cd, cp, mv,...) is it possible to create variables that hold
these paths?

e.g.
instead of typing: cd /mnt/shared/music/lyrcis
type: cd $LYRICS  (where $LYRICS is /mnt/shared/music/lyrcis)

Can I simply add 'LYRICS="/mnt/shared/music/lyrcis"' to my '~/.bashrc'?

Or is there a better way?

TIA
-- 
 #  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
 #  Red Hat Linux 7.3  KDE 3.0.0-10  kernel 2.4.18-3  i686  128MB RAM  #
 #  3:43pm up 4 days, 4:33, 3 users, load average: 1.68, 1.11, 0.94 #

Re: [Linuxcommand-discuss] how to remove "mbox.ibex" files from all subfolders?

[Mertens B. <bra...@li...>]

Thx,

After reading your suggestion I checked with my "Linux in a nutshell"
for some more info on the -exec and found the -ok option, which
basically does the same but asks the users to confirm (much like the -i
option of rm).

> find ~/evolution -name mbox.ibex -exec rm {} \;

so I guess I'll use:
find ~/evolution -name mbox.ibe -ok rm {} \;

Thx a lot!

Regards
-- 
 #  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
 #  Red Hat Linux 7.3  KDE 3.0.0-10  kernel 2.4.18-3  i686  128MB RAM  #

Re: [Linuxcommand-discuss] how to remove "mbox.ibex" files from all subfolders?

[William S. <bs...@pa...>]

You could do it with the find command like so:

find ~/evolution -name mbox.ibex -exec rm {} \;

If you want to do this the hard way:

for i in $(find ~/evolution -name mbox.ibex); do
	echo "Deleting $i"
	rm $i
done

DISCLAMIER: I did not test this and it uses rm, so be careful!

|||||  William Shotts, Jr. (bshotts AT panix DOT com)
|||||  Be a Linux Commander!  Follow me to http://linuxcommand.org

On 7 Nov 2002, Mertens Bram wrote:

> Hi,
>
> I'm not sure this requires a script, but I don't know how to this using
> pipes or i/O redirection...
>
> Any help with either solution will be greatly appreciated!
>
> I'm using Evolution 1.0.8 as my mail-client, all mail and data is store
> in ~/evolution/ and its subfolders.
>
> I would like a script or command that checks through ~/evolution
> recursively and deletes all files named "mbox.ibex".
>
> I can find the files with either:
> ls lh -R evolution/ | grep ibex
> or
> find evolution/ -name mbox.ibex
>
> (when I'm in my home dir off course...)
>
> Is there a way to pass these files to rm?
>
> I could copy the rm-commands I now used to delete them all into a script
> but then I would have to edit the script every a new subfolder is
> created, renamed or deleted...
>
> TIA
> --
>  #  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
>  #  Red Hat Linux 7.3  KDE 3.0.0-10  kernel 2.4.18-3  i686  128MB RAM  #
>
>
>
> -------------------------------------------------------
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> https://lists.sourceforge.net/lists/listinfo/linuxcommand-discuss
>

[Linuxcommand-discuss] how to remove "mbox.ibex" files from all subfolders?

[Mertens B. <bra...@li...>]

Hi,

I'm not sure this requires a script, but I don't know how to this using
pipes or i/O redirection...

Any help with either solution will be greatly appreciated!

I'm using Evolution 1.0.8 as my mail-client, all mail and data is store
in ~/evolution/ and its subfolders.

I would like a script or command that checks through ~/evolution
recursively and deletes all files named "mbox.ibex".

I can find the files with either:
ls lh -R evolution/ | grep ibex
or
find evolution/ -name mbox.ibex

(when I'm in my home dir off course...)

Is there a way to pass these files to rm?

I could copy the rm-commands I now used to delete them all into a script
but then I would have to edit the script every a new subfolder is
created, renamed or deleted...

TIA
-- 
 #  Mertens Bram "M8ram" <bra...@li...>   Linux User #249103  #
 #  Red Hat Linux 7.3  KDE 3.0.0-10  kernel 2.4.18-3  i686  128MB RAM  #

[Linuxcommand-discuss] Re: Is anybody using Netscape 4.x anymore?

[Karl V. <vo...@dn...>]

>> In a previous message, "William Shotts" <bs...@pa...> said:

B> I am experimenting with a more style sheet oriented approach to coding
B> the Linuxcommand.org web pages, but since Netscape 4.x has such poor
B> support for CSS, I wanted to know if anybody uses Netscape 4.x rather
B> than something newer like Netscape 6.x or 7.x.

   I use 4.79 and had no trouble displaying
   http://linuxcommand.org/experimental.html

-- 
Karl Vogel               ASC/YCOA, Wright-Patterson AFB, OH 45433
vo...@dn...                   http://www.dnaco.net/~vogelke

Pig: An animal (Porcus omnivorous) closely allied to the human race by
the splendor and vivacity of its appetite, which, however, is inferior
in scope, for it balks at pig.     --Ambrose Bierce, "The Devil's Dictionary"

Re: [Linuxcommand-discuss] Is anybody using Netscape 4.x anymore?

[Bruce B. <bbu...@ea...>]

----- Original Message ----- 
From: "William Shotts" <bs...@pa...>
To: <lin...@li...>
Sent: Saturday, October 19, 2002 11:51 AM
Subject: [Linuxcommand-discuss] Is anybody using Netscape 4.x anymore?


> I am experimenting with a more style sheet oriented approach to coding
> the Linuxcommand.org web pages, but since Netscape 4.x has such poor
> support for CSS, I wanted to know if anybody uses Netscape 4.x rather
> than something newer like Netscape 6.x or 7.x.
> 
> I have an experimental, prototype page at:
> 
> http://linuxcommand.org/experimental.html
> 
> which demonstrates the new technique. It look like the old pages for the
> most part but is a much cleaner to code and helps me achieve better
> standards compliance.
> -

Hi Bill,

Looks fine to me.  But I'm using IE  here and use
w3m on Linux.

The list on the upper left


  a.. LinuxCommand 
  b.. Learning the shell 
  c.. Writing shell scripts 
  d.. Script library 
  e.. SuperMan pages 
  f.. Who, What, Where, Why 
only shows up from  nuxCommand onward.


Glad to know this is still happening.  I am spread
very thin at the moment and able to devote only
a small amount of time to  learning scripting.

Have made some improvements to my file explorer,  however:


#!/bin/bash
#fe by Bruce<+>

gf ()  {
   select com in less zless file "ls -laF" w3m "rm -i" ;                 do
                         $com $fname
                 return
     done
}


while : ; do
         select fname in $HOME / EXIT $(ls -aF) ; do
                  if [ "$fname" = EXIT ] ; then 
                  exit; fi
                  if [ -f "$fname" ] ; then
                           gf
       
            elif [ -d "$fname" ] ; then
                cd "$fname"    
                echo "$PWD"
                break
            fi
     done
done 


Bruce<+>
























- 
> |||||  William Shotts, Jr. (bshotts AT panix DOT com)
> |||||  Be a Linux Commander!  Follow me to http://linuxcommand.org
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:
> Access Your PC Securely with GoToMyPC. Try Free Now
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> _______________________________________________
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> Lin...@li...
> https://lists.sourceforge.net/lists/listinfo/linuxcommand-discuss

[Linuxcommand-discuss] Is anybody using Netscape 4.x anymore?

[William S. <bs...@pa...>]

I am experimenting with a more style sheet oriented approach to coding
the Linuxcommand.org web pages, but since Netscape 4.x has such poor
support for CSS, I wanted to know if anybody uses Netscape 4.x rather
than something newer like Netscape 6.x or 7.x.

I have an experimental, prototype page at:

http://linuxcommand.org/experimental.html

which demonstrates the new technique. It look like the old pages for the
most part but is a much cleaner to code and helps me achieve better
standards compliance.
-- 
|||||  William Shotts, Jr. (bshotts AT panix DOT com)
|||||  Be a Linux Commander!  Follow me to http://linuxcommand.org

Re: [Linuxcommand-discuss] finding hidden files

[Bruce B. <bbu...@ea...>]

----- Original Message -----
From: "Steve Sanders" <st...@th...>
To: <lin...@li...>
Sent: Sunday, September 08, 2002 10:27 AM
Subject: [Linuxcommand-discuss] finding hidden files


Greetings all!  I am new to the list so I apologize if this question is out
of place because it is too basic.  I am taking a class at college on Linux.
We are completing a lab, and one of the questions was to determine how many
hidden files there are in the /etc directory.  I found the answer using:
ls -a
I am just wondering if there is a way to just display the hidden files.  I
tried using:
ls -a | grep .*
but it seemed to ignore the . and just display everything.

[  grep uses regular expressions, and the .  dot means to
substitute one character for it..  It is a wild card...

escape the dot   like so:    \.     ]



 I tried several other things as well, but everything seemed to just ignore
the ".".  So, does anyone know a way to just display the hidden files in the
/etc directory?  Thanks for the help.

Steve


[Welcome Steve........

    If you want to display the hidden files  do:

  $  cat  /etc/.*   then  use Shift+PageUp/PageDown  to
scroll back and forward....
    If it is a really long list,  pipe it to less:

  $ cat /etc/.*   |  less

This is from the console.....I don't use X.
To get to a real console (instead of an Xterm)  do
Ctrl+LeftAlt and  F1-6,  then login.

Bruce<+> ]

[Linuxcommand-discuss] finding hidden files

[Steve S. <st...@th...>]

Thanks for all the help!

Steve

Re: [Linuxcommand-discuss] finding hidden files

[William S. <wes...@co...>]

On Sunday 08 September 2002 01:27 pm, Steve Sanders wrote:
> Greetings all!  I am new to the list so I apologize if this question is out
> of place because it is too basic.  I am taking a class at college on Linux.
>  We are completing a lab, and one of the questions was to determine how
> many hidden files there are in the /etc directory.  I found the answer
> using: ls -a
> I am just wondering if there is a way to just display the hidden files.  I
> tried using: ls -a | grep .*
> but it seemed to ignore the . and just display everything.  I tried several
> other things as well, but everything seemed to just ignore the ".".  So,
> does anyone know a way to just display the hidden files in the /etc
> directory?  Thanks for the help.
>
> Steve

If you want to know the number of hidden files in /etc and all of its 
subdirectories, try:

find /etc -type f -name ".*" | wc -l

If you just want the number of hidden files in /etc (not its subdirectories), 
try:

find /etc -type f -name ".*" -maxdepth 1 | wc -l

To use ls to get an approximate list of the hidden files (plus the . and .. 
entries), try:

ls -d .*

-- 
|||||  William Shotts, Jr. (bshotts AT panix DOT com)
|||||  Be a Linux Commander!  Follow me to http://linuxcommand.org

Re: [Linuxcommand-discuss] finding hidden files

[Alaa T. G. <al...@an...>]

On Sun, 8 Sep 2002 12:27:38 -0500
Steve Sanders wrote:

> does anyone know a way to just display the hidden files in the /etc
> directory?  Thanks for the help.

ls /etc/.*

this would also list the contents of any hidden directory so if
you only want to list the direcotory names only use the -d flag this
way

ls /etc/.* -d

cheers,
Alaa
-- 
Perilous to all of us are the devices of an art deeper than we
ourselves
possess.
                -- Gandalf the Grey [J.R.R. Tolkien, "Lord of the
Rings"]

[Linuxcommand-discuss] finding hidden files

[Steve S. <st...@th...>]

Greetings all!  I am new to the list so I apologize if this question is =
out of place because it is too basic.  I am taking a class at college on =
Linux.  We are completing a lab, and one of the questions was to =
determine how many hidden files there are in the /etc directory.  I =
found the answer using:
ls -a =20
I am just wondering if there is a way to just display the hidden files.  =
I tried using:=20
ls -a | grep .*
but it seemed to ignore the . and just display everything.  I tried =
several other things as well, but everything seemed to just ignore the =
".".  So, does anyone know a way to just display the hidden files in the =
/etc directory?  Thanks for the help.

Steve

Re: [Linuxcommand-discuss] Re: Your message to Linuxcommand-discuss awaits moderator approval

[Bruce B. <bbu...@ea...>]

Alaa---  I got your  rough draft and will send it back
annotated in a few days....

    Just read the "case"  lesson in Bill's  tutorial, and
made the following  crude improvement to the fe  script:

(sure wish  I knew how to make the output  page without
using  Shift +  PageUp/PageDown.......[ which in a huge directory like  /dev
would run off the scrollback buffer ] )




#!/bin/bash
###2.05
case $1 in
         -l) XX=less ;;
         -f) XX=file ;;
         -z) XX=zless ;;
         -ll) XX="ls -lah" ;;
         -h) XX=w3m ;;
            *)  echo "Usage: You must use one of these options:
              -l for less
              -f for file
              -z for zless
              -ll for ls -lah
              -h  for w3m "

         exit 1
     ;;

esac

while : ; do
     select fname in $HOME / EXIT $(ls -aF) ; do
              if [ "$fname" = EXIT ] ; then
                  echo "$PWD" > /home/farley931/.t2
              exit; fi

             if [ -f "$fname" ] ; then
                     echo
                    echo
                    ${XX} "$fname"
                   echo
                   echo
            elif [ -d "$fname" ] ; then
               cd "$fname"
               echo "$PWD"
               break
              fi
     done
done


Bruce<+>

[Linuxcommand-discuss] Re: Your message to Linuxcommand-discuss awaits moderator approval

[Alaa T. G. <al...@an...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Thu, 29 Aug 2002 11:09:06 -0700
lin...@li... wrote:

> Your mail to 'Linuxcommand-discuss' with the subject
> 
>     Re: [Linuxcommand-discuss] Greetings & a Script
> 
> Is being held until the list moderator can review it for approval.
> 
> The reason it is being held:
> 
>     Message body is too big: 80981 bytes but there's a limit of 40
>     KB
> 
> Either the message will get posted to the list, or you will receive
> notification of the moderator's decision.

this message was not supposed to go to the list, I'm sorry please
remove it.

sorry again,
Alaa
- -- 
Perilous to all of us are the devices of an art deeper than we
ourselves
possess.
                -- Gandalf the Grey [J.R.R. Tolkien, "Lord of the
Rings"]
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hgO/mIQq+eJKWMd/h81gW7s=
=Dcip
-----END PGP SIGNATURE-----

Re: [Linuxcommand-discuss] Greetings & a Script SORRY

[Alaa T. G. <al...@an...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



ooops very sorry for sending this on the list, I didn't realize what I
was doing until it was too late, sorry.

Alaa
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)

iD8DBQE9bmKnqIWBQ7ecPHcRAsJrAJ97ZuiSdjWfjyG6Ti2UyzU4KH4Q6wCePIs7
bBoO9BuoZ3iTErsIab4TVW0=
=hzEu
-----END PGP SIGNATURE-----

Re: [Linuxcommand-discuss] Greetings & a Script

[Bruce B. <bbu...@ea...>]

    
----- Original Message ----- 
From: "Alaa The Great" <al...@an...>
To: <lin...@li...>
Sent: Thursday, August 29, 2002 9:55 AM
Subject: Re: [Linuxcommand-discuss] Greetings & a Script


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> On Thu, 29 Aug 2002 09:27:51 -0700
> "Bruce Burhans" <bbu...@ea...> wrote:
> 
> > 
> >     I was referring to files transferred from that legacy
> > system.......
> 
> yes thats why I have to make my scripts space safe, most of my media
> files are from the dark days when all I had was TLS :-)
> 
> > > yes it works because of the back ticks which puts the output of
> > > basename in front of echo.
> > 
> >   Yes,  I caught that.......Bill says that backticks are
> > ugly and to use $( ).  But more is involved :  With a
> > poor editor like the one in OE,  it is very hard to tell
> > whether they are forward  or back quotes.....
> 
> but on the other hand they are identical?? or is there a difference??
> I prefer the backticks brackets in front of a dollar sign have many
> meaning its confusing to memorize them all, anyways I use mcedit when
> I'm writing bash script, backticks have a black background which makes
> them very visible against the blue screen.
> 
> >     THAT  is valuable information....And until now I had
> > no clue......It is hard to  relate to bash as just another
> > executable.....
> yes but it makes sense, I use this alot to do jobs like
> 
> find files using locate or find | filter with grep etc | add a command
> in front of each line using awk | bash to execute this script
> 
> locate core | grep "/core$" | awk '{print "rm " $0}' | bash
> 
> and it removes all core files (or at least all core files the slocate
> data base knows about)
> 
> and a small script (a wrapper really) to rename mp3 files according to
> their id3 data, it uses mp3info for this.
> 
> #!/bin/bash
> #mp3rename
> 
> for i in $*;
> do
>     mp3info -p "mv \"%f\" \"%a_-_%t.mp3\"\n" "$i" | grep -v "_-_.mp3"
> |tr [\'\;\&] " ";
> 
> done
> 
> I need an ogg one but ogginfo isn't as flexible as mp3info anyone with
> ideas??
> 
> I'm also thinking about one that does the opposite (change id tags
> according to filenames)
> 
> BTW I'm writing a command line and Bash tutorial for my LUG,
> unfortunatly I have to  write in English first and then translate it
> to my native language arabic (it is much easier this way) anypne care
> to review it for me I really need feedback.
>

    Be happy to,  IF  you think I am qualified....Have yet
to even begin learning AWK.........Send in plain text if
possible,  in the main body of the message.....

    Your English is excellent....

Bruce<+>
 
> cheers,
> Alaa
> 
> - -- 
> Perilous to all of us are the devices of an art deeper than we
> ourselves
> possess.
>                 -- Gandalf the Grey [J.R.R. Tolkien, "Lord of the
> Rings"]
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> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Linuxcommand-discuss mailing list
> Lin...@li...
> https://lists.sourceforge.net/lists/listinfo/linuxcommand-discuss

Re: [Linuxcommand-discuss] Greetings & a Script

[Alaa T. G. <al...@an...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Thu, 29 Aug 2002 09:27:51 -0700
"Bruce Burhans" <bbu...@ea...> wrote:

> 
>     I was referring to files transferred from that legacy
> system.......

yes thats why I have to make my scripts space safe, most of my media
files are from the dark days when all I had was TLS :-)

> > yes it works because of the back ticks which puts the output of
> > basename in front of echo.
> 
>   Yes,  I caught that.......Bill says that backticks are
> ugly and to use $( ).  But more is involved :  With a
> poor editor like the one in OE,  it is very hard to tell
> whether they are forward  or back quotes.....

but on the other hand they are identical?? or is there a difference??
I prefer the backticks brackets in front of a dollar sign have many
meaning its confusing to memorize them all, anyways I use mcedit when
I'm writing bash script, backticks have a black background which makes
them very visible against the blue screen.

>     THAT  is valuable information....And until now I had
> no clue......It is hard to  relate to bash as just another
> executable.....
yes but it makes sense, I use this alot to do jobs like

find files using locate or find | filter with grep etc | add a command
in front of each line using awk | bash to execute this script

locate core | grep "/core$" | awk '{print "rm " $0}' | bash

and it removes all core files (or at least all core files the slocate
data base knows about)

and a small script (a wrapper really) to rename mp3 files according to
their id3 data, it uses mp3info for this.

#!/bin/bash
#mp3rename

for i in $*;
do
    mp3info -p "mv \"%f\" \"%a_-_%t.mp3\"\n" "$i" | grep -v "_-_.mp3"
|tr [\'\;\&] " ";

done

I need an ogg one but ogginfo isn't as flexible as mp3info anyone with
ideas??

I'm also thinking about one that does the opposite (change id tags
according to filenames)

BTW I'm writing a command line and Bash tutorial for my LUG,
unfortunatly I have to  write in English first and then translate it
to my native language arabic (it is much easier this way) anypne care
to review it for me I really need feedback.

cheers,
Alaa

- -- 
Perilous to all of us are the devices of an art deeper than we
ourselves
possess.
                -- Gandalf the Grey [J.R.R. Tolkien, "Lord of the
Rings"]
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Re: [Linuxcommand-discuss] Greetings & a Script

[Bruce B. <bbu...@ea...>]

----- Original Message -----
From: "Alaa The Great" <al...@an...>
To: "Bruce Burhans" <bbu...@ea...>
Sent: Thursday, August 29, 2002 12:48 AM
Subject: Re: [Linuxcommand-discuss] Greetings & a Script


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Wed, 28 Aug 2002 20:15:34 -0700
> "Bruce Burhans" <bbu...@ea...> wrote:
>
>
> > > I modified it a bit to be handle filenames with spaces (they are
> > > not a good idea I know)
> > >
> >     They are a drag...Linux doesn't know how to cope with them.....I
> >     end up
> > having to  do  mv  foo*  and ls
> > divides the names into seperate filenames.....
>
> it copes with them fine if you know bash quoting rules, they are very
> complex however and I always have to try several combinations before I
> get it right.
>

    I was referring to files transferred from that legacy
system.......


>
> > > #!/bin/bash
> > > old=$1
> > > new=$2
> > > for i in *$old;
> > > do
> > >     echo mv \"$i\" \"`basename "$i" $old`$new\";
> > > done
> > >
> >
> >        this works without the  $k part?  Sure looks like it
> >        would...... Will
>
> yes it works because of the back ticks which puts the output of
> basename in front of echo.
>

  Yes,  I caught that.......Bill says that backticks are
ugly and to use $( ).  But more is involved :  With a
poor editor like the one in OE,  it is very hard to tell
whether they are forward  or back quotes.....


> > have to try it....What if there IS no space....?   If it works it
> > sure is efficient..........
> of course it works if there are no spaces, it handles any other
> special character except the double quote itself.
>
> >     How do you pipe something on stdout   to  bash?
> sh foo | bash
>
> this pipes the output of the script foo to bash
>
> if foo is executable then simply
>
> foo | bash
>
> this is one of the things that no one tells you, bash reads from stdin
> like any other GNU command.
>

    THAT  is valuable information....And until now I had
no clue......It is hard to  relate to bash as just another
executable.....



> I use this technique all the time specially because of bad filenames,
> you can never be sure what your script is going to do.
>
> P.S. loved the fe script, it amazing how much you can achieve in few
> lines, maybe you should work on adding more options
>

    Thanks.  It would be nice to have one to run <file>
or <ls -lha>  or  <zless>  instead of <less>......Needs a few
real registers (In RAM, which I don't know how to create Would you just
create a ramdisk?)  for file operations like cp and mv.......


Here's a simple script I wrote so that I could have a  running  clock to set
my   house clock....

blah

while :  do
    date
    sleep 1
    clear
done
# ^c  to exit
.
Bruce<+>


>
> cheers,
> Alaa
> - --
> Perilous to all of us are the devices of an art deeper than we
> ourselves
> possess.
>                 -- Gandalf the Grey [J.R.R. Tolkien, "Lord of the
> Rings"]
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Re: [Linuxcommand-discuss] Greetings & a Script

[Bruce B. <bbu...@ea...>]

----- Original Message -----
From: "William Shotts" <wes...@co...>
To: <lin...@li...>
Sent: Wednesday, August 28, 2002 7:14 PM
Subject: Re: [Linuxcommand-discuss] Greetings & a Script


> On Wednesday 28 August 2002 08:36 pm, Bruce Burhans wrote:
>
> > > First, you could simplify it by doing the following:
> > >
> > > #!/bin/bash
> > >
> > > old=$1
> > > new=$2
> > >
> > > for i in *$old; do
> > > k=$(basename $i $old)
> > > mv $i $k$new
> > > done
> > >
> > > I haven't tested this, but it looks right ;-)
> >
> >         Bill.....I have bad news and good news.....
> >
> > The script above  puts the new extension on every file
> > in the directory, regardless of its present extension...
> > The  test part is needed....
>
> Try it again Bruce.  The "for" will only select files that have the old
> extension.  Make sure you are using:
>
> for i in *$old;
>
> and not
>
> for i in * $old;
>
> If you include a space between the "*" and the "$old", it will process all
> the files.


        Ahh!  Oops!  Dot thy i's and cross thy t's.....

>
> >
> > I am  a good way through your scripting tutorial,  and it
> > is the best one  out of a half-dozen I have on my box..
> >
> > You take the time to explain what is going on, to answer
> > obvious questions that pop up,  and are oriented towards
> > functionality.  For example:  Not one of the other tutorials
> > mentions that you  bash has a help command.....
> >
> > I've read the entire bash reference manual, and had no
> > idea that such a thing existed.......Nor do any of them
> > tell you that you put a function in your  .bashrc.....!
> > (why don't you need to chmod +rx  it ? )  or enter them
> > on the cli.....
>
> You don't need to make it executable because it's not executed, it's
sourced.
> That is, it is read as input by another script, usually .bash_profile.
>
> > You have the makings of a really good book there...
> > (e or otherwise )
>
> Maybe someday.  I'd be happy just to have enough time to write the next
> lesson.
>

    Am looking forward to it.....

Bruce<+>


> --
> |||||  William Shotts, Jr. (bshotts AT panix DOT com)
> |||||  Be a Linux Commander!  Follow me to http://linuxcommand.org
>
>
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Re: [Linuxcommand-discuss] Greetings & a Script

[William S. <wes...@co...>]

On Wednesday 28 August 2002 08:53 pm, Alaa The Great wrote:
> nice script,
> I modified it a bit to be handle filenames with spaces (they are not a
> good idea I know)
>
> #!/bin/bash
> old=$1
> new=$2
> for i in *$old;
> do
>     echo mv \"$i\" \"`basename "$i" $old`$new\";
> done
>
>
> I prefer it to print the commands on stdout first just to make sure
> that everything is OK and then pipe the output to bash for the actual
> renaming to happen.
>
> cheers,
> Alaa

Yes!  That is an excellent technique for testing your work.  Everybody should 
look at this and see how Alaa is using echo to see the command that is 
created.  I do this same trick all the time while I am developing.

-- 
|||||  William Shotts, Jr. (bshotts AT panix DOT com)
|||||  Be a Linux Commander!  Follow me to http://linuxcommand.org