Commands by tomjrace (2)

  • Play a stream and give back the shell

    I wanted to play a song from the shell and get the shell back, I also dont want to store the file if it is not needed. edit, not sure if I need to mention it... killall vlc to stop it Show Sample Output


    -1
    wget http://somesite.com/somestream.pls; cvlc somestream.pls&sleep 5; rm somestream.pls*
    tomjrace · 2011-08-04 19:24:18 4
  • repository search

    This is the best way I have found to search out an application when I am not sure the title. Grep is just to remove anything that does not contain the term in the title or short description (lots of things might include the search term in the description, such as libraries used by the application) Show Sample Output


    0
    aptitude search ~d "irc client"|grep -i "irc client"
    tomjrace · 2011-07-11 19:48:55 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

Get absolut path to your bash-script
Another way of doing it that's a bit clearer. I'm a fan of readable code.

backup and remove files with access time older than 5 days.
create an archive of files with access time older than 5 days, and remove original files.

Touch a file using a timestamp embedded in the file name.
tstouch takes two arguments: a filename containing a timestamp, and an extended regular expression with the parenthesized section matching a timestamp of the form YYYYMMDDhhmm or YYYYMMDDhhmm.ss. It then touches the file with that timestamp.

show installed but unused linux headers, image, or modules
will show: installed linux headers, image, or modules: /^ii/!d avoiding current kernel: /'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d only application names: s/^[^ ]* [^ ]* \([^ ]*\).*/\1/ avoiding stuff without a version number: /[0-9]/!d

Get OSX Battery percentage
adjusting the field "f1" will give you additional information such as f1 = 98% f2 = discharging f3 = 2:02 remaining

uniq for unsorted data

Multi-segment file downloading with lftp
This is for files only, for directories 'mirror' has to be used.

analyze traffic remotely over ssh w/ wireshark
When using tcpdump, specify -U option to prevent buffering.

List just the executable files (or directories) in current directory
A bit shorter ;)

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" }

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: