backticks - bash instead of sh

daverave has asked for the wisdom of the Perl Monks concerning the following question:

Hi,

I noticed that when I use backticks in perl the commands are executed using sh, not bash, giving me some problems.

How can I change that behavior so perl will use bash?

Thanks, Dave

Comment on backticks - bash instead of sh

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Re: backticks - bash instead of sh by Corion (Patriarch) on Jul 30, 2010 at 17:52 UTC
This is documented, see perlop on `qx`. If you don't want `/bin/sh`, use system or IPC::Open2 or IPC::Open3 or explicitly invoke `/bin/bash` or whatever shell you want.	[reply] [d/l] [select]
Re^2: backticks - bash instead of sh by daverave (Scribe) on Jul 30, 2010 at 18:16 UTC
The command I'm trying to run is `paste filename <(cut -d \" \" -f 2 filename2 \| grep -v mean) >> filename3` Even if I begin with `/bin/bash ...` I get "sh: Syntax error: "(" unexpected".	[reply] [d/l] [select]
Re^3: backticks - bash instead of sh by ahmad (Hermit) on Jul 30, 2010 at 18:31 UTC
Write it in Perl, or just use a bash file and call it through perl. I don't think this is a hard job to do in perl. You'll have to read tow files and output them in 1 file... and this has been done many times before over here ... use the search button in the top of the site to look that up	[reply]
Re: backticks - bash instead of sh by DStaal (Chaplain) on Jul 30, 2010 at 18:16 UTC
See Corin's answer, but also: `bash -c 'command'` should also work. (That is: have sh call bash.)	[reply]
Re^2: backticks - bash instead of sh by daverave (Scribe) on Jul 30, 2010 at 18:33 UTC
Thank you.	[reply]