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.
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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
needs grep what supports '--recursive'
like #9295, but awkish instead of perlish
should do the same as command #12875, just shorter.
Be aware of using the --password argument as it will appear your password in plain text on the screen. You may use -p argument instead, it will prompt you to enter you password in hidden mode.
Substitute that 724349691704 with an UPC of a CD you have at hand, and (hopefully) this oneliner should return the $Artist - $Title, querying discogs.com.
Yes, I know, all that head/tail/grep crap can be improved with a single sed command, feel free to send "patches" :D
Just an alternative. Here the output of the subshell statement is a complete script for dc so you can save it, manipulate it with some other tool or just debug it with less.
This will tighten up security for your box. The default value for PermitRootLogin sadly is 'yes'.
Useful when you need to write e.g. an INSERT for a table with a large number of columns. This command will retrieve the column names and comma-separate them ready for INSERT INTO(...), removing the last comma.
add overlay png image to video as logo...........
allow you to find duplicates files in "DIRECTORY" and choose wich one to delete
fudpes must be installed: sudo apt-get install fdupes
Imagemagick library is used. If image format is not JPEG, the "quality" option should not be issued.
This is longer than others on here. The reason for this is I have combined two different matrix commands so it would work on all computers. I logged onto my server through a computer and it worked fine. I logged into my server through a mac and it looked $4!t so I have made one that works through both.
left-most column is PID, middle is virtual memory being consumed, right-most is actual process.
The command find search commands with size zero and erase them.
# example 27.12.1975 08:00
command [options] [paste your variable here] parameter
command [options] [paste entire column of variables here] parameter
(hard-code command "c" and parameter "e" according to your wishes: in example shown command = "cp -a" and parameter = "~")
- Quick exchange only variable part of a long command line
- Make variable part to be an entire column of data (i.e. file list)
- Full control while processing every single item
Paste column of data from anywhere. I.e. utilize the Block Select Mode to drag, select and copy columns (In KDE Konsole with Ctrl+Alt pressed, or only Ctrl pressed in GNOME Terminal respectively).
You can paste only one single variable in a row. If there are more space separated variables in a row only first one will be processed, but you can arrange your variables in a column instead. To transpose rows to columns or vice versa look at Linux manual pages for 'cut' and 'paste'.
- add edit mode to vary command "c" and parameter "e" on the fly
- add one edit mode more to handle every list item different
- add y/n/a (=All) instead of only y(=default)/n to allowed answers
The code is not optimized, only the basic idea is presented here. It's up to you to shorten code or extend the functionality.
gpg's compression is as suitable as gzip's however your backups can now be encrypted.
to extract use:
gpg < folder.tpg | tar -xf -
Same thing as above, just uses fetch and ipchicken.com