Re: cat -ing Multiple files with Perl

Doing `cat` with `perl`:

The first is simply a replacement for DOS or other systems which don't provide a cat command.

perl -p file1 file3 file14 file47 > selected.txt
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The second lets you list the files to be selected in a file. Instead of listing them all, one by one, you cat the file into the command list for the perl command.

perl -p `cat selection.list` > selected.txt
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If you are concatenating many files, being the restrictions of command line length, the third one uses a begin block to open the file, stuff all the names into @ARGV, replacing whatever was there before ( namely the name of the section file ), and lets the -p option output print all the files.

perl -p -e'BEGIN{ local $/; open LIST, '<', $ARGV[0]; my @list = <LIST
+>; @ARGV = @list; }' selection.list > selected.txt
[download]

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Re^2: cat -ing Multiple files with Perl by Anonymous Monk on Aug 29, 2009 at 11:24 UTC
I your case the easiest way to do is: cat file*.txt >> finalfile.txt Greetings Naltagua	[reply]

Doing cat with perl:

Doing `cat` with `perl`: