Re: no reaction on string replace

Another possible approach is a Perl one-liner at the DOS command line:

perl -pi.bak -e "s/test/replace/g;" filename.txt

Try it with unimportant test files first. The replacements will occur in the existing file, and the old contents should be saved to a .bak file.

Comment on Re: no reaction on string replace Download Code

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Re^2: no reaction on string replace by semipro (Novice) on Sep 10, 2013 at 21:49 UTC
Hi, thnx. Yeah thats working!!! cool	[reply]
Re^2: no reaction on string replace by semipro (Novice) on Sep 11, 2013 at 19:22 UTC
Hi, ok I was bit early ecouraged. the line `perl -pi.bak -e "s/test/replace/g;" filename.txt` works as DOS command. But when I try to squeez it in my skript he needs an operator before the file path. So `#!/usr/bin/perl -w perl -pi.bak -e "s/test/replace/g;" C:/user/Desktop/filename.txt` [download] is not working. Can you help me out, again? Thank you!	[reply] [d/l] [select]
Re^3: no reaction on string replace by Laurent_R (Canon) on Sep 11, 2013 at 21:26 UTC
Yeah, on the DOS or UNIX command line, the "-pi.bak -e" options have the effect of considerably simplifying the syntax for modifying a text file. If you want to write a real script, it is slightly more complicated, those simplifications no longer apply. Within a Perl script, you would need to do something like this; `#!/usr/bin/perl; use strict; use warnings; my $file_in = shift; open my $FH, "<", $file_in or die "cannot open $file_in $!"; while (<$FH>) { s/test/replace/g; print; }` [download] The above might still be considered simplistic, it is just giving an idea. Please don't hesitate to ask if you need further information.	[reply] [d/l]