sh: -c: line 0: syntax error near unexpected token `('

ilans11il has asked for the wisdom of the Perl Monks concerning the following question:

Hi , Could you please advise , What is wrong with my command:

$RT_DiffFiles= `comm -23 <(sort $RT_64OG_FilesPath) <(sort $RT_64_File
+sPath)`;
[download]

the error:

sh: -c: line 0: syntax error near unexpected token `('
sh: -c: line 0: `comm -23 <(sort ./TmpData/RT_64OG_Files) <(sort ./Tmp
+Data/RT_64_Files)'
[download]

the print of the command:

comm -23 <(sort ./TmpData/RT_64OG_Files) <(sort ./TmpData/RT_64_Files)
[download]

from linux the command is working with no problem... thanks in advanced

Comment on sh: -c: line 0: syntax error near unexpected token `(' Select or Download Code

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Re: sh: -c: line 0: syntax error near unexpected token `(' by derby (Abbot) on Nov 27, 2013 at 11:08 UTC
Looks like sh on your system is not bash (or any shell that supports the process substitution syntax). -derby Update: You could always force bash: $RT_DiffFiles= `bash -c \"comm -23 <(sort $RT_64OG_FilesPath) <(sort $ +RT_64_FilesPath)\"`; [download] but I'd look to see if Text::Diff accomplishes what you're after first.	[reply] [d/l]
Re: sh: -c: line 0: syntax error near unexpected token `(' by oiskuu (Hermit) on Nov 27, 2013 at 17:48 UTC
Compare `FOO=...` to `$FOO=...`. First one assigns to a variable, the latter will expand variable, `=`, `...` parts, then attempt to execute the result. In other words, be mindful of where you put the `$`. RT_DiffFiles=`comm -23 <(sort $RT_64OG_FilesPath) <(sort $RT_64_FilesPath)`; echo "$RT_DiffFiles"; Are you trying to rewrite this as perl code?	[reply]