Re^2: Converting File Delimiters

I'm getting an error running the code below

perl -MApp::CCSV -ne "$csv->sep_char('|'); csay @f; $csv->sep_char(','+)" <aaa.txt >pipe.txt

syntax error at -e line 1, at EOF Execution of -e aborted due to compilation errors.

I think it has something to do with the double quotes

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Re^3: Converting File Delimiters by afoken (Chancellor) on Aug 10, 2012 at 05:33 UTC
I think it has something to do with the double quotes Yes, and with your shell. As a rule of thumb, you need to quote one-liners with double quotes on Windows, and with single quotes on Unix systems including Linux, BSD, Mac OS X and the cygwin shell. If you use double quotes on Unix, the shell interpolates the quoted string, and because you rarely have an environment variable named "csv", each "$csv" is replaced with an empty string. This does not happen on Windows with command.com and cmd.exe, because their quoting rules are, um, different. Strange may be a better word, bug-compatible back to MS-DOS 1.0 describes what actually happens. And don't forget that Windows does not expand wildcards for you. This is not a problem with this one-liner, but often you want to use Win32::Autoglob: `X:\>perl -E "say for @ARGV" .exe .exe X:\>perl -MWin32::Autoglob -E "say for @ARGV" .exe cksum.exe cp.exe cut.exe date.exe sort.exe sum.exe X:\>` [download] Alexander -- Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)	[reply] [d/l]

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Re^3: Converting File Delimiters
by afoken (Chancellor) on Aug 10, 2012 at 05:33 UTC

I think it has something to do with the double quotes

Yes, and with your shell. As a rule of thumb, you need to quote one-liners with double quotes on Windows, and with single quotes on Unix systems including Linux, *BSD, Mac OS X and the cygwin shell.

If you use double quotes on Unix, the shell interpolates the quoted string, and because you rarely have an environment variable named "csv", each "$csv" is replaced with an empty string.

This does not happen on Windows with command.com and cmd.exe, because their quoting rules are, um, different. Strange may be a better word, bug-compatible back to MS-DOS 1.0 describes what actually happens.

And don't forget that Windows does not expand wildcards for you. This is not a problem with this one-liner, but often you want to use Win32::Autoglob:

X:\>perl -E "say for @ARGV" *.exe
*.exe

X:\>perl -MWin32::Autoglob -E "say for @ARGV" *.exe
cksum.exe
cp.exe
cut.exe
date.exe
sort.exe
sum.exe

X:\>
[download]

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

[reply]
[d/l]