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open path with your default program (on Linux/*BSD)
open [path] in the default program, regardless of which Desktop Environment you use (KDE, GNOME, etc.) Works on all "freedesktop.org" compatible desktop environments

list ips with high number of connections

Oneliner to run commands on multiple servers
Oneliner to run commands on multiple servers over ssh. - First parameter "$1" is the command you want to execute remotely. ( It can be multiple commands e.g. "hostname;uptime") - Second parameter "${@:2}" represents the remote host/s you want to run the command/s on.

Get a shell with a not available account

Get the SAN (subjectAltName) of a site's certificate.
Based on http://stackoverflow.com/questions/13127352/checking-alternative-names-for-a-san-ssl-cert Replace "facebook.com" with the desired hostname.

Rename files in batch

Update Ogg Vorbis file comments
The "vorbiscomment" utility lets you update information such as artist names and song and album tags in an Ogg Vorbis file. You can use this command to fix any mistakes that were made when ripping an album.

Count number of files in a directory
Just want to post a Perl alternative. Does not count hidden files ('.' ones).

Apply permissions only to files
To apply only to dirs: $ chmod 755 $(find . -type d) Use -R parameters for recursive walk.

video thumbnail gallery
thumbnail gallery of video using totem


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