Remove all spaces from command's output
This is used to find externally accessible network interfaces; interfaces that others can connect to us with. By then finding the IP address of these interfaces, we can find addresses that other hosts would use in order to connect to us. Show Sample Output
Kills all browser tabs, without killing browser or extensions.
usage = crontest "/path/to/bin" This version of this function will echo back the entire command so it can be copied/pasted to crontab. Should be able to be automagically appended to crontab with a bit more work. Tested on bash and zsh on linux,freebsd,aix Show Sample Output
If you want to create new user accounts in OS X from the command line use this fragment to find the next free user id. In OS X CLI you have to assign the user id yourself Show Sample Output
The leading plus sign is removed - Minus sign is left intact Show Sample Output
Replace grep | sed with single awk script.
When you want to know the duration of all your mp3 files in the current working directory this command will tell you based on exif data. Since it relies on exif data it can be used against other files like movies, ogg vorbis etc. also. Useful when you want to know how long it will take to listen to an album or series of lectures. Show Sample Output
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 $'\t' -f 2-
If you're unsure what size a blank folder is, test it like this:
mkdir test; du test; rmdir test
Don't want to open up an editor just to view a bunch of XML files in an easy to read format? Now you can do it from the comfort of your own command line! :-) This creates a new function, xmlpager, which shows an XML file in its entirety, but with the actual content (non-tag text) highlighted. It does this by setting the foreground to color #4 (red) after every tag and resets it before the next tag. (Hint: try `tput bold` as an alternative). I use 'xmlindent' to neatly reflow and indent the text, but, of course, that's optional. If you don't have xmlindent, just replace it with 'cat'. Additionally, this example shows piping into the optional 'less' pager; note the -r option which allows raw escape codes to be passed to the terminal. Show Sample Output
merge ifconfig grep awk sed you need to change the interface of ifconfig where ip is up Show Sample Output
Grep for string in all files in a folder, get only the names of the file, making the file list uniq, then assingning all the file names to a variable in awk & printing on STDOUT
Shows the WiFi signal strength without having to display thousands of lines Show Sample Output
Get an approximation of who the workstation is assigned to. You can wrap it in su - "$()" if you want to log into a shell as that user. Show Sample Output
Download all pdf files off of a website using wget. You can change the file type to download, changing the extension, as an example you can change pdf for txt in command. Show Sample Output
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