Examples

Introduction

Here is set of examples demonstrate how to use yad in shell scripts.

Logout dialog

Show logout dialog.

Additional software:

• wmctrl (http://tripie.sweb.cz/utils/wmctrl/)

code:

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#! /bin/bash action=$(yad --width 300 --entry --title "System Logout" \ --image=gnome-shutdown \ --button="Switch User:2" \ --button="gtk-ok:0" --button="gtk-close:1" \ --text "Choose action:" \ --entry-text \ "Power Off" "Reboot" "Suspend" "Logout") ret=$? [[ $ret -eq 1 ]] && exit 0 if [[ $ret -eq 2 ]]; then gdmflexiserver --startnew & exit 0 fi case $action in Power*) cmd="sudo /sbin/poweroff" ;; Reboot*) cmd="sudo /sbin/reboot" ;; Suspend*) cmd="sudo /bin/sh -c 'echo disk > /sys/power/state'" ;; Logout*) case $(wmctrl -m | grep Name) in *Openbox) cmd="openbox --exit" ;; *FVWM) cmd="FvwmCommand Quit" ;; *Metacity) cmd="gnome-save-session --kill" ;; *) exit 1 ;; esac ;; *) exit 1 ;; esac eval exec $cmd

Run dialog

Run dialog with history, URI recognition and run-in-xterm functions

Additional software:

• xterm
• perl

code:

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#! /bin/bash XTERM="xterm" # create history file mkdir -p ${XDG_CACHE_HOME:-$HOME/.cache}/ HISTFILE=${XDG_CACHE_HOME:-$HOME/.cache}/ix-run.history touch $HISTFILE # create and run dialog TITLE="Run command" TEXT="\nEnter command to execute:\n" rcmd=$('yad --width=500 --center --window-icon="gtk-execute" --name="${0##*/}" --title="$TITLE" --text="$TEXT" --image="gtk-execute" --entry --editable --rest="$HISTFILE") [[ -z "$rcmd" ]] && exit 0 # run command case $rcmd in http://*|https://*|ftp://*) xdg-open $rcmd & ;; mailto://*) xdg-email $rcmd & ;; man://*) eval $XTERM -e "man ${rcmd#man://}" & ;; telnet*|ssh*) eval $XTERM -e "$rcmd" & ;; *) eval $rcmd & ;; esac # add command to history grep -q -F "$rcmd" $HISTFILE || sed -i "1 i $rcmd" $HISTFILE exit 0

Autostart editor

Edit content of $HOME/.config/autostart.

code:

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#! /bin/bash config_dir=${XDG_CONFIG_HOME:-$HOME/.config} results=$(mktemp --tmpdir autostart.XXXXXXXXXX) for f in $config_dir/autostart/*.desktop; do grep -m 1 -e '^[[:blank:]]*Exec' $f | cut -d = -f 2 grep -m 1 -e '^[[:blank:]]*Name' $f | cut -d = -f 2 grep -m 1 -e '^[[:blank:]]*Comment' $f | cut -d = -f 2 done | yad --width=500 --height=300 --title="Autostart editor" --image="gtk-execute" \ --text="Add/remove autostart items" --list --editable --print-all \ --multiple --column="Command" --column="Name" --column="Description" > $results if [[ ${PIPESTATUS[1]} -eq 0 ]]; then rm -f $config_dir/autostart/*.desktop i=0 cat $results | while read line; do eval $(echo $line | awk -F'|' '{printf "export NAME=\"%s\" COMMENT=\"%s\" COMMAND=\"%s\"", $2, $3, $1}') cat > $config_dir/autostart/$i$NAME.desktop << EOF [Desktop Entry] Encoding=UTF-8 Name=$NAME Comment=$COMMENT Exec=$COMMAND StartupNotify=true Terminal=false EOF $((i++)) done unset NAME COMMENT COMMAND fi rm -f $results exit 0

Graphical frontend for su(1)

Run program as a different user (root by default). Ask password if needed

Additional software:

• empty (http://empty.sourceforge.net/)

code:

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#! /bin/bash # some defaults user="root" suargs="-p" force="no" # parse commandline if [[ $# -eq 0 ]]; then echo "Usage: ${0##*/} [-f] [-u user] [--] " exit 1 fi OPTIND=1 while getopts u: opt; do case "$opt" in f) force="yes" ;; u) user="$OPTARG" ;; esac done shift $((OPTIND - 1)) cmd="$*" if [[ $force != "no" ]]; then # check for sudo sudo_check=$(sudo -H -S -- echo SUDO_OK 2>&1 &) if [[ $sudo_check == "SUDO_OK" ]]; then eval sudo $cmd exit $? fi fi # get password pass=$(yad --class="GSu" \ --title="Password" \ --text="Enter password for user <b>$user</b>:" \ --image="dialog-password" \ --entry --hide-text) [[ -z "$pass" ]] && exit 1 # grant access to xserver for specified user xhost +${user}@ &> /dev/null # run command fifo_in="$(mktemp -u --tmpdir gsu.empty.in.XXXXXXXXX)" fifo_out="$(mktemp -u --tmpdir gsu.empty.out.XXXXXXXXX)" LC_MESSAGES=C empty -f -i $fifo_in -o $fifo_out su $suargs $user -c "$cmd" [[ $? -eq 0 ]] && empty -w -i $fifo_out -o $fifo_in "word:" "$pass\n" exit $?

[Anonymous]

Originally posted by: peterpas...@gmail.com

Is there (or could there be) any provision for which element of the dialog has focus?

This was my main gripe with Zenity, that (for instance in a question dialog) you could not set which of the 2 buttons was the default selected (it was OK and I needed No as default).

[Anonymous]

Originally posted by: georgian...@gmail.com

Hi. It is possible that the source of a combo box to be a file?

[Anonymous]

Originally posted by: ananasik

yes. use --rest option

[Anonymous]

Originally posted by: georgian...@gmail.com

thanks, work fine.

... and how do I set default value for Combo Box ?

[Anonymous]

Originally posted by: n3tw0rk...@gmail.com

[Anonymous]

Originally posted by: nerunblogs

PassoUm(){

        PASTA_FORM=$(yad --width=570 --height=300\
                                --form\
                                --field="Pasta de Trabalho:DIR"\
                                --title="Criador de Pacotes Debian - 1º Passo"\
                                --image-on-top --image="Package.png"\
                                --button="gtk-close:0" --button="gtk-ok:1"\
                                --text=" Os pacotes Debian são criados a partir dos arquivos de uma
 pasta no seu micro. Dentro dessa pasta você monta uma
 estrutura de diretórios similar ao do seu sistema, mas
 colocando apenas as pastas onde o seu programa instalará
 arquivos. O instalador extrairá os arquivos para as pastas
 indicadas.

 <b>Exemplo:</b> se quiser instalar um programa chamado
 'exemplo' em '/opt', crie uma pasta chamada 'pacote' em 
 algum lugar do seu micro (geralmente na pasta de usuário),
 e dentro dela crie a pasta '/opt/exemplo'.

 Agora crie sua Pasta de Trabalho e depois selecione-a a
 seguir:")
        ret=$?

        echo "$PASTA_FORM" | cut -d"|" -f 1 > /tmp/teste.tmp

        if [ $ret -eq 1 ]; then # 1 = OK
                pasta=$(echo "$PASTA_FORM" | cut -d"|" -f 1)
                PassoMeio $pasta
        else # 0 = close
                exit
        fi

}

When i use this code, pasta=$(echo "$PASTA_FORM" | cut -d"|" -f 1) is always null. Doesn't matter wich folder i choose. What happens?

Uh, and /tmp/teste.tmp always write /home/user/Desktop

[Anonymous]

Originally posted by: nerunblogs

SOLVED: i removed: --button="gtk-close:0" --button="gtk-ok:1"\ don't need it

[Anonymous]

Originally posted by: ananasik

if you set your own buttons, remember that only buttons with even exit codes prints result. this is default behavior that may be changed by specifying --always-print-result.

[Anonymous]

Originally posted by: hpp3.mar...@gmail.com

A few changes to the Run dialog example... I couldn't get it to populate the history, so swapped '--entry' and '--editable'. Now history shows up, but doesn't populate properly (spaces seen as new lines?), so I used the --rest option instead and read the $HISTFILE directly, eliminating the need for eval'ing. I also used a trick to put the last command used at the head of the file, so it shows up as the first entry in the combo box.

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#! /bin/bash XTERM="xterm" # create history file mkdir -p ${XDG_CACHE_HOME:-$HOME/.cache}/ HISTFILE=${XDG_CACHE_HOME:-$HOME/.cache}/ix-run.history touch $HISTFILE # create and run dialog TITLE="Run command" TEXT="\nEnter command to execute:\n" rcmd=$(yad --width=500 --center --window-icon="gtk-execute" --name="${0##/}" --title="$TITLE" --text="$TEXT" --image="gtk-execute" --editable --entry --rest $HISTFILE) [-z "$rcmd" ] && exit 0 # run command case $rcmd in http://*|https://*|ftp://*) xdg-open $rcmd & ;; mailto://*) xdg-email $rcmd & ;; man://*) eval $XTERM -e "man ${rcmd#man://}" & ;; telnet*|ssh*) eval $XTERM -e "$rcmd" & ;; *) eval $rcmd & ;; esac # add command to history head $HISTFILE | grep -qF "$rcmd" || echo -e "$rcmd\n$(<$HISTFILE)" > $HISTFILE exit 0

I changed the grep line because if a command is buried down in the history, I wanted to allow it writing to the file even if the command exists farther down; for convenience. I also think the file should be kept trim with a 'head -n' command; I tried to feed my bash history to it and it threw an error. ;)

[Anonymous]

Originally posted by: ananasik

yes, now --rest is a better choice than perl && eval. and for adding command at the begin of history file, i use sed - sed -i "1 i $rcmd" $HISTFILE

[Anonymous]

Originally posted by: jbs...@gmail.com

Anyone can help me with this?

So basically this BASH script works fine, Debian boots into a minimal Matchbox WM environment and this script is autorun which displays a nice graphical prompt allowing entry of AD username and pass, and then the vars get passed to pyhoca-cli which logs the computer into a remote x2go-server linux terminal server.. it works without issue.

However what I want to do is add an additional drop-down selection to the YAD graphical prompt (after the first two fields), where the user can select the session (eg kde, xfce4, lxde & fluxbox), and then pass that selection to the pyhoca-cli command to replace startkde with something like start$frmdata (from the dropdown selection)...

Not sure exactly how to do this...

root@lxtrms-thinclient-colodesk:~# cat /home/colodesk/start_pyhoca.sh
 #!/bin/bash
while true; do
frmdata=$(yad --center --undecorated --image=/usr/share/wallpaper/header-mod.jpg --image-on-top --button="gtk-ok:0" --title "Login to Linux Terminal Server" --form --field="AD username" --field="Password:H")
frmusername=$(echo $frmdata | awk 'BEGIN {FS="|" } { print $1 }')
frmpassword=$(echo $frmdata | awk 'BEGIN {FS="|" } { print $2 }')
pyhoca-cli --server some.private.ip.addr -u $frmusername --password $frmpassword -c startkde --sound none --kbd-layout us --kbd-type pc105/us -g fullscreen --add-to-known-hosts
done

[Anonymous]

Originally posted by: macke...@gmail.com

Here is a process killer to select one (or more) pids and kill them:

!/bin/bash

TMPFILE=/tmp/$$.pstmp OUTFILE=/tmp/$$.psdata EMSG=/tmp/$$.errmsg

gen_data() {

ps aux | tail -n +2 > $TMPFILE

cat $TMPFILE | awk -F' ' '{print " " "\n" $1 "\n" $2 "\n" $3 "\n" $4 "\n" $5 "\n" $6 "\n" $7 "\n" $8 "\n" $9 "\n" $10 "\n" $11}' > $OUTFILE

}

while true do

gen_data

selection=$( yad --list \

--checklist \

--column=":CHK" \ --column="USER:TXT" \ --column="PID:NUM" \ --column="%CPU:NUM" \ --column="%MEM:NUM" \ --column="VSZ:NUM" \ --column="RSS:NUM" \ --column="TTY:TXT" \ --column="STAT:TXT" \ --column="START:TXT" \ --column="TIME:TXT" \ --column="COMMAND:TXT" \ --multiple \ --width=900 \ --height=600 \ --title="Killer" \ --window-icon="process-stop" \ --button="Kill:0" \ --button="Refresh:1" \ --button="Exit:2" < $OUTFILE)

sel_ret=$?

case $sel_ret in

0)

echo "$selection" | awk -F'|' '{print $3 " " $12}' | while read pid cmd do

if -n "$pid" then

zenity --question --text "Confirm kill of pid: $pid\n\nCommand: $cmd" rc=$? if $rc -eq 0 then

kill -9 $pid 2> $EMSG if $? -ne 0 then

errmsg="cat $EMSG" zenity --error --text "$errmsg"

else

zenity --info --text "Pid $pid killed..." --timeout=1

fi

fi

else

zenity --info --text "No pid selected..." --timeout=3

fi

done ;;

1. continue ;;

2)

break ;;

esac

done

rm -f $TMPFILE rm -f $OUTFILE rm -f $EMSG

[Anonymous]

Originally posted by: yarling....@gmail.com

Hi. I created a start and stop button interface. So when I clicked on the start button, my program is executing but the interface is gone. How can I make the interface remain so that I can stop my program using the stop button in the interface? Thanks.

[Anonymous]

Originally posted by: ekia...@gmail.com

It would be great if yad could display icons/tiny pictures in "lists" - so that one can for example display a thumbnail in a column, and the name of the file in another. Would that be possible to implement ?

[Colin Keenan]

I've read the man page and examples here and elsewhere, but really, there should be quick example usage for each option. Right now, I can't get --show-uri to work. Can anyone post a simple example of --show-uri in the --text-info dialogue? This doesn't work:

yad --info-text --show-uri --text="https://www.google.com/"

[Brian Stewart]

I'm trying to use a numerical input field with a range of -5 to +10 and with an initial value of -2. I can get yad to set the range with the -5..10 range but I cannot get the initial value to be a negative number. It always seems to start with an initial value of 0.
What am I doing wrong?

yad --title="Negative number test" --form --field="number:NUM" "(-2)!-5..10!1!0"

[Victor Ananjevsky]

don't use brackets. separate data from options with two dashes if you have data started with dash

yad --title="Negative number test" --form --field="number:NUM" -- "-2!-5..10!1!0"

[Brian Stewart]

Thank you, thank you, thank you!!!
I knew this had to be something stupid on my part.
I had tried using variables, expressions brackets etc.
I'm new to bash and didn't know about the "--". I won't forget it now.

[wseverin]

I've been a frequent user of zenity and just a few days ago decided to see what I could do with yad. Here is the fruit – a simple random password generator that lets the user pick symbol sets and some constraints. I'm sure there are better ways to do some of the things here, but it may be a helpful example for future yad users. This works with yad 0.38.2 on Ubuntu 17.10 (Artful).

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#!/bin/bash # put following code into temporary file and make executable echo '#!/bin/bash declare -a ARGS USEDSYM UC="ABCDEFGHJKLMNPQRSTUVWXYZ" # excludes "I" and "O" LC="abcdefghijkmnopqrstuvwxyz" # excludes "l" NUM="0123456789" HEX="ABCDEF" SPEC="!@#$%-&." function reqChar { local i i0 ix j FROMSET="$1" GOOD=FALSE i0=$(( $RANDOM * PWLEN / 32768 )) for ((ix=i0;ix<PWLEN+i0;ix++)); do i=$(( ix % PWLEN )) if [ "${FROMSET#*${PW:$i:1}}" != "$FROMSET" ]; then GOOD=TRUE USEDSYM[i]=1 break fi done if [ $GOOD = FALSE ]; then i0=$(( $RANDOM * PWLEN / 32768 )) for (( ix=i0;ix<i0+PWLEN;ix++)) ; do i=$(( ix % PWLEN )) if [ -z ${USEDSYM[i]} ]; then j=$(( $RANDOM * ${#FROMSET} / 32768 )) # a random character to replace it with PW="${PW:0:$((i))}${FROMSET:j:1}${PW:$((i+1))}" USEDSYM[i]=1 break fi done fi } # pwgen-exec main # args: PWLEN USEUC USELC USENUM USEHEX USESPEC RQUC RQLC RQNUM RQSPEC i=0 for arg in "$@"; do ARGS[i++]=$arg done # determine base symbol set PWLEN=${ARGS[0]} SYMSET="" if [ "${ARGS[1]}" = "TRUE" ]; then SYMSET="${SYMSET}${UC}"; fi if [ "${ARGS[2]}" = "TRUE" ]; then SYMSET="${SYMSET}${LC}"; fi if [ "${ARGS[3]}" = "TRUE" ]; then SYMSET="${SYMSET}${NUM}"; fi if [ "${ARGS[4]}" = "TRUE" ]; then SYMSET="${SYMSET}${HEX}"; fi if [ "${ARGS[5]}" = "TRUE" ]; then SYMSET="${SYMSET}${SPEC}"; fi SYMLEN=${#SYMSET} PW="" for ((i=0;i<PWLEN;i++)); do PW=${PW}${SYMSET:(( $RANDOM % SYMLEN )):1} done # comply with constraints USEDSYM=( ) if [ "${ARGS[6]}" = "TRUE" ]; then reqChar "$UC"; fi if [ "${ARGS[7]}" = "TRUE" ]; then reqChar "$LC"; fi if [ "${ARGS[8]}" = "TRUE" ]; then reqChar "$NUM"; fi if [ "${ARGS[9]}" = "TRUE" ]; then reqChar "$SPEC"; fi if [ ${#PW} = 0 ]; then PW="nonsense"; fi echo "16:${PW}"' > /tmp/pwgen-exec chmod 777 /tmp/pwgen-exec yad --title="PWGen" --center \ --form \ --field="password length:NUM" \ --field="<b>select base character set(s)</b>:LBL" \ --field="uppercase alpha:CHK" \ --field="lowercase alpha:CHK" \ --field="numeric:CHK" \ --field="A-F:CHK" \ --field="special:CHK" \ --field=":LBL" \ --field="<b>select constraint(s)</b>:LBL" \ --field="at least one uppercase:CHK" \ --field="at least one lowercase:CHK" \ --field="at least one numeric:CHK" \ --field="at least one special:CHK" \ --field=":LBL" \ --field="gtk-execute:FBTN" \ --field=":TXT" \ "8!4..132" "" TRUE TRUE TRUE FALSE FALSE "" "" FALSE FALSE TRUE FALSE "" \ '@bash -c "/tmp/pwgen-exec %1 %3 %4 %5 %6 %7 %10 %11 %12 %13"' \ "password" \ --button="Exit:1" rm -f /tmp/pwgen-exec exit 0