Re: fileexist(f)

[Petr M. <mi...@ph...>]

>> fileexist(name)=\
>> system(sprintf("bash -c \"if [ -a %s ]; then echo 1; else echo 0; fi\"", name))
>>
>> print fileexist('a')
>> print fileexist('aa')
>
> ierr = system("test -e 'a'")
> if (ERRNO) print "No such file"

How to make a function of it? I cannot figure it out:

fileexist(name)=((system("test -e 'ab'")!="!!!") && !ERRNO)
print fileexist('anything')

Unfortunately, neither works under wgnuplot_pipes.

> Didn't we start this whole discussion thread with comparisons of
> "find" vs. "test" and their use to check file existence or updates?

Then I have probably haven't figure it out how to write it in a portable 
way.

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PM