2011/12/13 Bob Proulx <b...@proulx.com>:
> Davide Brini wrote:
>> Bob Proulx wrote:
>> > perl -lne 'print $_ if ! defined $a{$_}; $a{$_}=$_;'
>>
>> While we're at it, this is the typical awk way to do that:
>>
>> awk '!a[$0]++'
Very great thanks to you and David about providing a one-liner
solution! I've modified the awk version in order it works as an alias.
I send it in case some one asks the same question:
Copy-paste the next line in ~/.bash_aliases:
alias uniqall='awk '"'"'! a[$0]++'"'"''
Then you can filter like that:
cat file | ... | uniqall | ...
(tested with bash, version 4.2.20(1)-release under Debian Wheezy)
Thanks and good bye,
--
Stéphane
