Re: How to modify words in a line using perl oneliner

perl -i.bak -pe 's/first/last/g' one.txt
[download]

To make your code work you need to change the order of operators and add 'g' modifier to the regexp

perl -ni.bak -e 's/first/last/g; print' one.txt
[download]

Comment on Re: How to modify words in a line using perl oneliner Select or Download Code

Replies are listed 'Best First'.
Re^2: How to modify words in a line using perl oneliner by BioLion (Curate) on Sep 30, 2009 at 11:10 UTC
Maybe also add in boundaries, just in case? Firstly, blast, etc... `perl -ni.bak -e 's/\bfirst\b/last/g; print' one.txt` Just a something something...	[reply] [d/l]
Re^2: How to modify words in a line using perl oneliner by Bloodnok (Vicar) on Sep 30, 2009 at 11:36 UTC
...or even, assuming ...second line... to be a specific requirement (c/w a statement of the loaction of the string to be changed): `perl -ni.bak -e 's/first/last/g if $. == 2; print' one.txt` [download] A user level that continues to overstate my experience :-))	[reply] [d/l]


We don't bite newbies here... much
	PerlMonks