Commands by poulter7 (2)

  • gmail safe folder

    Returns any file in the folder which would be rejected by Gmail, if you were to send zipped version. (Yes, you could just zip it and knock the extension off and put it back on the other side, but for some people this just isn't a solution) Show Sample Output


    -1
    find | egrep "\.(ade|adp|bat|chm|cmd|com|cpl|dll|exe|hta|ins|isp|jse|lib|mde|msc|msp|mst|pif|scr|sct|shb|sys|vb|vbe|vbs|vxd|wsc|wsf|wsh)$"
    poulter7 · 2010-11-23 16:53:55 11
  • Stop Grooveshark destroying your CPU

    Will limit the amount of CPU time Grooveshark the greedy yet useful Adobe Air app will have. Leaves the UI lagging a little, but crucially does not ruin the audio. Show Sample Output


    0
    sudo cpulimit -e Grooveshark -l 20
    poulter7 · 2010-11-15 16:58:50 4

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Install pip with Proxy
Installs pip packages defining a proxy

Exclude svn directories with grep
exclude-dir option requires grep 2.5.3

How fast is the connexion to a URL, some stats from curl

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Quickly add user accounts to the system and force a password change on first login
This command is a bit Linux specific, as --stdin doesn't exist for passwd on many Unix machines. Further, useradd is high level in most distributions and Unix derivatives except for the Debian family of distros, where adduser would be more appropriate. The last bit, with chage, will force the user to change their password on new login.

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Parse m3u playlist file for total time
Parse an m3u file with seconds for each item and output the length of the entire playlist

Randomize lines in a file
Works in sort (GNU coreutils) 7.4, don't know when it was implemented but sometime the last 6 years.

Get notified when a job you run in a terminal is done, using NotifyOSD
This is an alias you can add to your .bashrc file to get notified when a job you run in a terminal is done. example of use sleep 20; alert Source:http://www.webupd8.org/2010/07/get-notified-when-job-you-run-in.html

disable history for current shell session

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: