Replace all occurrences of a string within a file

Question

I have a string test.cgi@action=<action-name>

<action-name> can be any string

I would like to replace the above string with <action-name>.html for all the occurrences within a file.

Can any one please let me know how I can proceed with this using a Perl script?

ps: I didn't get any response when i posted as a comment to existing message. So, I'm posting as a new message.

You've been a member over a year; you need to learn how to vote, and how to accept answers. — Jonathan Leffler
– Jonathan Leffler, Commented Jul 15, 2011 at 3:18
if <action-name> can be any string, how do you know where the end of the string is? — glenn jackman
– glenn jackman, Commented Jul 15, 2011 at 14:01

Matthew · Accepted Answer · 2011-07-15 03:45:36Z

2

If it's a file, you could just use sed (assuming you're on some kind of *nix platform).

sed 's/test.cgi@action=/.html/g' file > output

or if you're feeling risky, you can edit the file in place.

sed -i 's/test.cgi@action=/.html/g' file

answered Jul 15, 2011 at 3:45

Matthew

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1 Comment

progster Over a year ago

By using this, if i have a string test.cgi@action=self, it is replaced as ".htmlself" but i'm expecting it to replace it as "self.html". Also, How can i do this using a perl program?.

7stud · Accepted Answer · 2011-07-15 02:22:21Z

1

use strict;
use warnings;
use 5.010;

my $string = <<'END_OF_STRING';
    test.cgi@action=xxxxxxxxxxx
    xxxxx test.cgi@action=aaaaaa
    yyyyyyyyyyytest.cgi@action=
END_OF_STRING


$string =~ s/test.cgi\@action=/.html/g;
print $string;


--output:--
    .htmlxxxxxxxxxxx
    xxxxx .htmlaaaaaa
    yyyyyyyyyyy.html

answered Jul 15, 2011 at 2:22

7stud

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2 Comments

progster Over a year ago

The output which i'm expecting is xxxxxxxxxxxxxxxx.html aaaaaayyyyyyyyyy.html

progster Over a year ago

Does any one know how to modify script to get my expected output.

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