using awk

missed the last char thanks @Josay

Open all files which have some string go directly to the first line where that string is and run command on it.

Other examples:

Run vim only once with multiple files (and just go to string in the first one):

Run vim for each file, go to string in every one and run command (to delete line):

This command will scan the subnet and exlude duplicates

Find the length of the longest line of code in your files.

Rip audio tracks from CD to wav files in current dir

Often times you run a command in the terminal and you don't realize it's going to take forever. You can open a new terminal, but you lose the local history of the suspended one. You can stop the running command using , but that may produce undesirable side-effects. suspends the job, and (assuming you have no other jobs running in the background) %1 resumes it. Appending & tells it to run in the background.

You now have a job running concurrently with your terminal. Note this will still print any output to the same terminal you're working on.

Tested on zsh and bash.

Use the lshw command to display information about your video card. Give more ouput when run as root.

Email if you disk is over 90% - www.fir3net.com

Print out contents of file with line numbers.

This version will print a number for every line, and separates the numbering from the line with a tab.

if you have a alias like this:

alias cp='cp -i'

# cp file1 file1.bak

equal to

# cp -i file1 file1.bak

(it will not overwrite file1.bak if it exist)

# \cp file1 file1.bak

equal to

# /bin/cp file1 file1.bak

(skip alias settings, it will overwrite file1.bak if it exist)

d --> delete

!d ---> delete others

The quality ranges between 0 to 9, with the smaller number indicates a higher quality file but bigger too.

Next time you see a mac fanboy bragging about 64-bitness of 10.6 give him this so he might sh?

Used it on daily basis, not sure if it's any better than the OPs version, tho'

One advantage is - you can replace 'bash' at the end of the line with eg. cat - to check if the generated command is OK.

Perl version - just for completeness sake ;)

Uses Unicode combining characters to produce strikethrough effect. Since commandlinefu doesn't display Unicode properly, you will need to replace the dash in the code above with the Unicode long stroke overlay (U+0336).

rsync by itself doesn't support copying between two remote hosts, but if you use sshfs you can pretend one of them is local. If you have a passphrase-less ssh-key, you can even put this script into a cron job.

A faster alternative is to run ssh-keygen on remote1 and put the pubkey into remote2:~/.ssh/authorized_keys, running rsync on remote1 (or vice versa), but the problem with that is that now a hacker on remote1 can access remote2 at any time. The above method ensures your local computer stays the weak link.

Git uses secure hash sums for its revision numbers. I'm sure this is fine and dandy for ultra-secure computing, but it's less than optimal for humans. Thus, this will give you sequential revision numbers in Git all the way from the first commit.

Per country GET report, based on access log. Easy to transform to unique IP