As LanX said, you need to use quotemeta(or \Q) for the parentheses.

Here might be what you want. 

#!/usr/bin/perl
use strict;
use warnings;

my @history = ( "Cache::SizeAwareMemoryCache(3)" , "dhcp-options(5)" ,
+ "BN_add_word(3)" , "audit-packages(8)" );
my $choice = "dhcp-options(5)";

@history = grep !/\Q$choice\E/, @history; # '\Q' to quotemeta
push @history, $choice;

print "@history";

[download]
Prints:


C:\Old_Data\perlp>perl test3.pl
Cache::SizeAwareMemoryCache(3) BN_add_word(3) audit-packages(8) dhcp-o
+ptions(5)
C:\Old_Data\perlp>

[download]

In reply to Re^3: Removing a string-element from an array of strings by Cristoforo
in thread Removing a string-element from an array of strings by Anonymous Monk

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