This is a kind of wrapper around the shell builtin cd that allows a person to quickly go up several directories. Instead of typing: cd ../.. A user can type: cd ... Instead of: cd ../../.. Type: cd .... Add another period and it goes up four levels. Adding more periods will take you up more levels.

Add the functions to the .bashrc to make it work Example: First go to the iso file directory and type: ---------------------------------------------------------------------------------------------------- user@box:~$ miso file.iso ---------------------------------------------------------------------------------------------------- It will put you into a temporary mounting point directory (ISO_CD) and will show the files You can umount the iso file whatever the directory you are ---------------------------------------------------------------------------------------------------- user@box:~/ISO_CD$ uiso ---------------------------------------------------------------------------------------------------- It wil umount the iso file and remove the temporary directory in your home

Sometimes you have to browse your way through a lot of sub-directories. This command cd to the next sub-directory in alphabetical order. For example, if you have the directories "lectures/01-intro", "lectures/02-basic", "lectures/03-advanced" and so on, and your PWD is "02-basic", it jumps to "03-advanced".

I find that I create a directory and then cd into that directory quite often. I found this little function on the internets somewhere and thought I'd share it. Just copy-paste it into you ~/.bash_profile and then `source ~/.bash_profile`. Show Sample Output

Instead of typing "cd ../../.." you can type ".. 3". For extremely lazy typists, you can add this alias: alias ...=".. 2" ....=".. 3" - so now you can write just .... !!! NB the .. function needs to be "source"d or included in your startup scripts, perhaps .bashrc.

Set a bookmark as normal shell variable p=/cumbersome/path/to/project To go there to p This saves one "$" and is faster to type ;-) The variable is still useful as such: vim $p/<TAB> will expand the variable (at least in bash) and show a list of files to edit. If setting the bookmarks is too much typing you could add another function bm() { eval $1=$(pwd); } then bookmark the current directory with bm p

in fact, I want to know, how to only get the modified files.

Obviously the example given is necessarily simple, but this command not only saves time on the command line (saves you using "cd -" or, worse, having to type a fully qualified path if your command cd's more than once), but is vital in scripts, where I've found the behaviour of "cd -" to be a little broken at times. Show Sample Output

Make sure to run this command in your git toplevel directory. Modify `-j4` as you like. You can also run any arbitrary command beside `git pull` in parallel on all of your git submodules. Show Sample Output

Usage: upto directory Show Sample Output

don't bother spawning a bc process or counting the number of options, just pick a random one. 'sort -R' sorts randomly, so pick the top one.

If you are in /begin/path/with/XX/pattern cd XX YY will change your current directory to /begin/path/with/YY/pattern in ZSH

Clone a partion with tar.

Another version based on linkinpark342's contribution. Sometimes you have to browse your way through a lot of sub-directories. This command cd to the next sub-directory in alphabetical order. For example, if you have the directories "lectures/01-intro", "lectures/02-basic", "lectures/03-advanced" and so on, and your PWD is "02-basic", it jumps to "03-advanced".

diff is designed to compare two files. You can also compare directories. In this form, bash uses 'process substitution' in place of a file as an input to diff. Each input to diff can be filtered as you choose. I use find and egrep to select the files to compare.

A cronjob command line to email someone when a webpages homepage is updated.

Output of this command is the difference of recursive file lists in two directories (very quick!). To view differences in content of files too, use the command submitted by mariusbutuc (very slow!): diff -rq path_to_dir1 path_to_dir2 Show Sample Output

If you try to access cd - you go to the last folder you were in.

Raise your hand if you haven't used this at least once to share a directory quickly

This comes in handy for me when I am developing and testing Perl command line scripts. http://technet.microsoft.com/en-us/library/bb490880.aspx