It is not the installed size in files, but the size of RPM packages. Show Sample Output

Grep can search files and directories recursively. Using the -Z option and xargs -0 you can get all results on one line with escaped spaces, suitable for other commands like rm. Show Sample Output

Original command: cat "log" | grep "text to grep" | awk '{print $1}' | sort -n | uniq -c | sort -rn | head -n 100 This is a waste of multiple cats and greps, esp when awk is being used

The AWK part of the code will "collate" the fields from 2nd to Nth field (this is to handle any svn directories that may have spaces in them - typical when working with code that is interchangeably used with windows environment - for example, documentation teams) - the output is passed to "ls -ld" - the -d option to ls will tell ls to handle directories itself, rather than do ls on the directory. The '-p' option is just for pretty printing directories, links and executables (for added readability). Finally, the entire "constructed" command will be passed onto sh for shell execution. Show Sample Output

Gets the Hardware UUID of the current machine using system_profiler. Show Sample Output

This command makes a small graph with the histogram of size blocks (5MB in this example), not individual files. Fine tune the 4+5*int($1/5) block for your own size jumps : jump-1+jump*($1/jump) Also in the hist=hist-5 part, tune for bigger or smaller graphs Show Sample Output

Caution: distructive overwrite of filenames Useful for concatenating pdfs in date order using pdftk

Its possible to user a simple regex to extract de username from the finger command. The final echo its optional, just for remove the initial space Show Sample Output

Given a hosts list, ssh one by one and echo its name only if 'processname' is not running. Show Sample Output

This is useful as a git hook to print out the directories that had files changed on a commit. Each directory is its own package. Show Sample Output

The sample output shows each record/row with the last field zero-padded to 26 digits. For testing, I used (L)ine and field/column numbers.... Line 4, field2 = L42, etc up to the last field where I just used line numbers X 4. I had some whitespace-delimited files with variable-length records/rows (having 4 - 5 fields/columns) which required reformatting by zero-padding the last field to 26 digits. This requires setting NF (Not $NF) as an awk variable, with a simple conditional that assumes that any line where (N)umber of (F)ields does NOT equal 4 has a NF of 5. If needed, more conditional checks can be added, and the "NF" changed to any field ($1, $5, etc). Show Sample Output

Use this command to watch apache access logs in real time to see what pages are getting hit. Show Sample Output

OSX users as well as linux users with copy/paste buffer commands can remove duplicate items from their copy buffer with this command. I use this often when I have to copy a long list of items that I didn't generate, but I need to paste elsewhere in a list that's unique. If retaining the original order of lines isn't important to you, use the following command which is easier to remember. pbpaste | sort | uniq | pbcopy

us lsof, grep for any pid matching a given name such as "node". Show Sample Output

Replace grep | sed with single awk script.

Removes directories which are less than 1028KB total. This works for systems where blank directories are 4KB. If a directory contains 1 MB (1024KB) or less, it will remove the directory using a path relative to the directory where the command was initially executed (safer than some other options I found). Adjust the 1028 value for your needs. It would be helpful to test the results before proceeding with the removal. Simply run all but the last two commands to see a list of what will be removed: du | awk '{if($1<1028)print;}' | cut -d $'\t' -f 2- If you're unsure what size a blank folder is, test it like this: mkdir test; du test; rmdir test

Don't want to open up an editor just to view a bunch of XML files in an easy to read format? Now you can do it from the comfort of your own command line! :-) This creates a new function, xmlpager, which shows an XML file in its entirety, but with the actual content (non-tag text) highlighted. It does this by setting the foreground to color #4 (red) after every tag and resets it before the next tag. (Hint: try `tput bold` as an alternative). I use 'xmlindent' to neatly reflow and indent the text, but, of course, that's optional. If you don't have xmlindent, just replace it with 'cat'. Additionally, this example shows piping into the optional 'less' pager; note the -r option which allows raw escape codes to be passed to the terminal. Show Sample Output