Re^2: Way to remove the new line characters at the end of the content in a file

Lines containing e.g. a lone } will be removed with that. I'd do this:

perl -ni.bak -le "print if $_" my_file.txt
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update: Oops! choroba is right below. Heck...

perl -ni.bak -le "print if length $_" my_file.txt
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perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

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Re^3: Way to remove the new line characters at the end of the content in a file by choroba (Cardinal) on Jul 22, 2015 at 10:16 UTC
The last line containing 0 and no newline would be removed :-) لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply]
Re^3: Way to remove the new line characters at the end of the content in a file by Laurent_R (Canon) on Jul 22, 2015 at 11:25 UTC
Lines containing e.g. a lone } will be removed with that. Oops, that's right, but I based the one-liner on the sample data shown by the OP, i.e. a file with a list of server names, which ought to contain some alphanumerical characters (and/or empty lines), not Perl or C code. Perhaps a stricter version: `perl -ni.bak -e "print $_ unless /^[\n\s]+$/;" my_file.txt` [download] But even this might also fail on some edge cases, the really right regex really depends on the actual content of the file being processed.	[reply] [d/l]