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Commands tagged perl from sorted by
Terminal - Commands tagged perl - 164 results
perl -ne '$sum += $_ for grep { /\d+/ } split /[^\d\-\.]+/; print "$sum\n"'
2009-06-16 06:39:08
User: obscurite
Functions: grep perl split
Tags: perl sum summation add subtract arithmetic numbers
3
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Do quick arithmetic on numbers from STDIN with any formatting using a perl one liner.

Good for summing the numbers embedded in text - a food journal entry for example with calories listed per food where you want the total calories. Use this to monitor and keep a total on anything that ouputs numbers.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for k in `git branch|perl -pe s/^..//`;do echo -e `git show --pretty=format:"%Cgreen%ci %Cblue%cr%Creset" $k|head -n 1`\\t$k;done|sort -r
2009-06-03 08:25:00
User: brunost
Functions: echo head perl sort
Tags: bash git perl grep branches
14
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Show git branches by date - useful for showing active branches

Print out list of all branches with last commit date to the branch, including relative time since commit and color coding.

Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
TOM=`perl -w -e '@tom=localtime(time+86400);printf "%d%.2d%.2d",$tom[5]+1900,$tom[4]+1,$tom[3];'`
2009-05-19 08:54:27
User: sharfah
Tags: perl
-2
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Get Tomorrow's Date

Returns tomorrow's date in the format yyyyMMdd

Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
YEST=`perl -w -e '@yest=localtime(time-86400);printf "%d%.2d%.2d",$yest[5]+1900,$yest[4]+1,$yest[3];'`
2009-05-19 08:54:06
User: sharfah
Tags: perl
-2
Up
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Get Yesterday's Date

Returns yesterday's date in the format yyyyMMdd

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
wget -q -O- http://www.gutenberg.org/dirs/etext96/cprfd10.txt | sed '1,419d' | tr "\n" " " | tr " " "\n" | perl -lpe 's/\W//g;$_=lc($_)' | grep "^[a-z]" | awk 'length > 1' | sort | uniq -c | awk '{print $2"\t"$1}'
2009-05-04 16:00:39
User: alperyilmaz
Functions: awk grep perl sed sort tr uniq wget
Tags: sort perl sed awk uniq wget tr
-4
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count occurences of each word in novel David Copperfield

This command might not be useful for most of us, I just wanted to share it to show power of command line.

Download simple text version of novel David Copperfield from Poject Gutenberg and then generate a single column of words after which occurences of each word is counted by sort | uniq -c combination.

This command removes numbers and single characters from count. I'm sure you can write a shorter version.

Show sample output | Comments (8) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for i in `screen -ls | perl -ne'if(/^\s+\d+\.([^\s]+)/){print $1, " "}'`; do gnome-terminal -e "screen -x $i"; done
2009-04-25 22:39:24
User: hank
Functions: perl
Tags: screen Linux perl
2
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Connect to all running screen instances

There was another line that was dependent on having un-named screen sessions. This just wouldn't do. This one works no matter what the name is. A possible improvement would be removing the perl dependence, but that doesn't effect me.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ldapsearch -v -H ldap://<server> -x -D cn=<johndoe>,cn=<users>,dc=<ourdomain>,dc=<tld> -w<secret> -b ou=<lazystaff>,dc=<ourdomain>,dc=<tld> -s sub sAMAccountName=* '*' | perl -pne 's/(\d{11})\d{7}/"DATE-AD(".scalar(localtime($1-11644473600)).")"/e'
2009-04-22 00:57:34
User: flux
Functions: perl
Tags: Date manipulation perl ldap
4
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decoding Active Directory date format

When Ldapsearch queries an Active directory server, all the dates are shown using a timestamp of 18 digits. This perl regexp decodes them in a more human friendly notation. 11644473600 corresponds to some microsoft epoch.

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$ perl -pi -e 's/\r\n/\n/g' <finelame>
2009-04-10 22:22:31
User: unixmonkey4200
Functions: perl
Tags: perl dos2unix
0
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dos2unix

Converts windows lined-style file to unix.

see http://en.wikipedia.org/wiki/Newline

Can be used to convert from linux2dos : just invert \r\n and \n.

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
perl -pi -e 's/foo/bar/g' $(grep -rl foo ./*)
2009-03-27 17:21:35
User: dopeman
Functions: grep perl
Tags: perl
-1
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Change all instances of a word in all files in the current directory and it's sub-directories

This command will replace all instances of 'foo' with 'bar' in all files in the current working directory and any sub-directories.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
du -hS / | perl -ne '(m/\d{3,}M\s+\S/ || m/G\s+\S/) && print'
2009-03-25 18:06:53
User: Alioth
Functions: du perl
Tags: Filesystem perl du
6
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Find all directories on filesystem containing more than 99MB

Finds all directories containing more than 99MB of files, and prints them in human readable format. The directories sizes do not include their subdirectories, so it is very useful for finding any single directory with a lot of large files.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
history | perl -lane '$lsize{$_} = scalar(@F); if($longest<$lsize{$_}) { $longest = $lsize{$_}; print "$_"; };' | tail -n1
2009-03-19 02:52:30
User: salparadise
Functions: perl tail
Tags: history perl
3
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find the longest command in your history
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
function dpan () { PKG=`perl -e '$_=lc($ARGV[0]); s/::/-/g; print "lib$_-perl\n"' $1`; apt-get install $PKG; }
2009-03-12 15:39:38
User: dave0
Functions: install
Tags: Debian perl apt-get cpan
1
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Install the Debian-packaged version of a Perl module

Running 'cpan Module::Name' will install that module from CPAN. This is a simple way of using a similar command to install a packaged Perl module from a Debian archive using apt-get.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
$ grep -rl oldstring . |xargs sed -i -e 's/oldstring/newstring/'
2009-03-03 20:10:19
User: netfortius
Functions: grep sed
Tags: perl sed
25
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recursive search and replace old with new string, inside files

recursively traverse the directory structure from . down, look for string "oldstring" in all files, and replace it with "newstring", wherever found

also:

grep -rl oldstring . |xargs perl -pi~ -e 's/oldstring/newstring'
Comments (9) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
:n,m w newfile.txt
2009-03-02 19:40:34
User: milmazz
Tags: vim perl
8
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New files from parts of current buffer

On command mode in Vim you can save parts of the current buffer in another file.

* The 'n' value represents the first line of the new file.

* The 'm' value represents the last line of the new file.

* newfile.txt is the newfile.

The results are similar to this command in perl:

perl -ne 'print if n..m' in.sql > out.sql
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate