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Commands tagged perl

Terminal - Commands tagged perl - 157 results

$ perl -pi -e 's/\r\n/\n/g' <finelame>

2009-04-10 22:22:31

User: unixmonkey4200

Functions: perl

Tags: perl dos2unix

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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

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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.

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

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find the longest command in your history

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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

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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.

$ grep -rl oldstring . |xargs sed -i -e 's/oldstring/newstring/'

2009-03-03 20:10:19

User: netfortius

Functions: grep sed

Tags: perl sed

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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'

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:n,m w newfile.txt

2009-03-02 19:40:34

User: milmazz

Tags: vim perl

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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

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