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file handling using perl [message #153423]

Mon, 02 January 2006 04:37

sunanda
Messages: 6
Registered: January 2006
Location: Bangalore

Junior Member

hi all..
Am the new member of this forum. I need help in writing perl script.
i wanna replace 9th line of a file with some other text. the file contains 15 lines. AND print the file conents.. Using linux platform
i wanna do this using perl.

Waiting for the hints n script..

Thanks in advance.

Regards
sunanda :-)

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Re: file handling using perl [message #153721 is a reply to message #153423]

Tue, 03 January 2006 20:52

rleishman
Messages: 3728
Registered: October 2005
Location: Melbourne, Australia

Senior Member

Don't have perl on this computer, but give this a go.

perl -p -e '$_ = "New line 9" if $. == 9' filename.txt

_____________
Ross Leishman

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Re: file handling using perl [message #154544 is a reply to message #153721]

Mon, 09 January 2006 06:14

sunanda
Messages: 6
Registered: January 2006
Location: Bangalore

Junior Member

hi..
Thanks a lot Ross Leishman
but that is in command line.. It works well..
but can u write perl script by opening a file..
after executing the script there should be permanent change in the file..
the command line execution changes only in the output but after opening the file there is no change.

Thanks n Regards
sunanda

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