Re: Using -i in oneliner with postprocessing

The inside-out braces are really freaky. Also, your solution won't work for multiple input files, while this will:

perl -i.bak -nlwe '$h{$_}++; if (eof) {print for sort { length($a) <=>
+ length($b) } keys %h;  %h=();}' junk.txt junk2.txt
[download]

Update: D'oh! I knew to do that! Thanks, Merlyn.

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Comment on Re: Using -i in oneliner with postprocessing Download Code

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•Re: Re: Using -i in oneliner with postprocessing by merlyn (Sage) on Apr 28, 2004 at 15:44 UTC
`perl -i.bak -nlwe '$h{$_}++; if (eof) {print for sort { length($a) <=> + length($b) } keys %h}' junk.txt junk2.txt` [download] You forgot to reset %h between files, so the second file will get all of the first file's lines. See my prototype answer. -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply] [d/l]