On Wed, Dec 18, 2002 at 01:29:59PM +0200, Malik Bülent wrote:
> I have a file.
> How can I backspace 5 character that start with expressions(the expression
> starts /aaa) in a file ?
> for example my file;
> " /aaa/yy/
> /aaa/..
> "
If you mean "how can I delete each instance of 5 characters starting
with /aaa from a file", then something like this should do it:
perl -pi.bak -e 's:/aaa.::g;' filename
which deletes the /aaa and the following (fifth) character. If you
mean to delete the 5 characters immediately *following* /aaa then:
perl -pi.bak -e 's:(?<=/aaa).{5}::g' filename
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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