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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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Counts the files present in the different directories recursively. One only has to change maxdepth to have further insight in the directory hierarchy.
Found at unix.stackexchange.com:
To understand why this is the equivalent of "find -L /path/to/search -type l, see http://ynform.org/w/Pub/FindBrokenSymbolicLinks or look at http://www.gnu.org/software/findutils/manual/html_mono/find.html
From the cwd, recursively find all rar files, extracting each rar into the directory where it was found, rather than cwd.
A nice time saver if you've used wget or similar to mirror something, where each sub dir contains an rar archive.
Its likely this can be tuned to work with multi-part archives where all parts use ambiguous .rar extensions but I didn't test this. Perhaps unrar would handle this gracefully anyway?
Sometimes my /var/cache/pacman/pkg directory gets quite big in size. If that happens I run this command to remove old package files. Packages that we're upgraded in last N days are kept in case you are forced to downgrade a specific package. The command is obviously Arch Linux related.
Searches for *.cpp and *.h in directory structure, counts the number of lines for each matching file and adds the counts together.
Probably neither faster nor better than -delete in find. It's just that I generally dislike teaching find builtin actions.
Also shows files as they are found. Only works from a tty.
In case you ever got to many arguments using rm to delete multiple files matching a pattern this will help you
touch -t 201208211200 first ; touch -t 201208220100 last ;
creates 2 files: first & last, with timestamps that the find command should look between:
201208211200 = 2012-08-21 12:00
201208220100 = 2012-08-22 01:00
then we run find command with "-newer" switch, that finds by comparing timestamp against a reference file:
find /path/to/files/ -newer first ! -newer last
meaning: find any files in /path/to/files that are newer than file "first" and not newer than file "last"
pipe the output of this find command through xargs to a move command:
| xargs -ifile mv -fv file /path/to/destination/
and finally, remove the reference files we created for this operation:
rm first; rm last;
This command allow you quick find any executable by keyword(s) in your system.
NOTE: Sometime this command will output like this:
`hello.py.launch': No such file or directory
this is normal behaviour
This is useful when you are uploading svn project files to a new git repo.
This command finds all the files whose status has changed between the ctime of the older and newer .
Very useful if you can see from an ls listing a block of consecutive files you want to move or delete, but can't figure out exactly the time range by date.
These should be a little faster since they don't have to spawn grep.
My most used bash function without a doubt!
Allows to change 'shell' compatible files execution bit even if their name is not *.sh
An example of this command that includes the -name arg.