commandlinefu.com is the place to record those command-line gems that you return to again and again.
Delete that bloated snippets file you've been using and share your personal repository with the world. 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.
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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
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:
Now all you have to do is replace user by your twitter username , pass by your password and the text inside status to whatever you wish to set your status too .
It uses cUrl library to post your messsage
Executes the previously-run command constantly until it returns 0 (success). Put a
Valid JSON is a subset of YAML; no transformation is necessary; however, YAML has many syntax features that are not valid JSON, so you can't do the reverse as easily.
echo 'alias monitor_off="sleep 1; xset dpms force standby"' >> ~/.bash_aliases ; . ~/.bash_aliases # now monitor_off does what you think
Converts YAML file to JSON.
Note that you'll need to install PyYAML. Also some YAML data types (like dates) are not supported by JSON).
Grabs video from dv firewire camera, saves it on file and plays it scaled down on ffplayer.
Useful to do Google+ Hangouts, and if the internet connection fails, there is still the recorded backup on the computer.
"capturefile" is the filename prefix that will be stored on disc.
This allows you to search through your history using the up and down arrows ? i.e. type "cd /" and press the up arrow and you'll search through everything in your history that starts with "cd /".
this command extends your logical volume. then it does a resize2fs on it as well. added the -r switch to make it launch resize.
So I had this 2TB Seagate external disk/USB enclosure which by default would spin-down its internal drive (it enters a standby mode) after four minutes of inactivity.. Spinning-up the inactive drive was an annoying delay when accessing files and also it severely interfered with NFS.. SCT stands for "Standby Condition Timer".
To completely disable SCT:
sdparm --clear STANDBY -6 /dev/sdb
To return to original (default) SCT settings:
sdparm -D -p 0x1a -6 /dev/sdb
To verify the settings (before and after):
sdparm -a /dev/sdb
No need for vendor-provided MSWIN tools, etc.
Install the Linux kernel headers for currently running kernel version on Debian-based systems via apt-get
Your computer's name is raspberrypi and you want to rename it to pita1.
This command will change both the hostname and the name used for netwrk communications.