Hmmm,

I think it looks like I and to some extent you, are barking up the wrong tree (well on linux & AIX anyway) - consider the following behaviour exhibited by both Linux 2.6.28-11-generic and AIX 5.3: 

user@unforgiven:~$ egrepa
bash: egrepa: command not found
user@unforgiven:~$ egrepa >/dev/null
bash: egrepa: command not found
user@unforgiven:~$ egrepa >/dev/null 2>&1
user@unforgiven:~$ perl -e '$res = `egrepa 2>&1`; print $res'
user@unforgiven:~$

[download]
Personally, I would expect the one-liner to print bash: egrepa: command not found - as it does if entered from command line - but doesn't.

If, however, as you suggest, a valid command is used with invalid opts, then the re-direction works as expected and the error is seen (on both platforms).

A user level that continues to overstate my experience :-))

In reply to Re^4: Running a C program from Perl by Bloodnok
in thread Running a C program from Perl by n4nature

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