Commands using awk (1,418)

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Quickly create an alias for changing into the current directory
Put the function in your .bashrc and use "map [alias]" to create the alias you want. Just be careful to not override an existing alias.

Stream and copy a video from lan
Requires a listening port on HOST eg. "cat movie.mp4 | nc -l 1356 " (cat movie.mp4 | nc -l PORT) Useful if you're impatient and want to watch a movie immediately and download it at the same time without using extra bandwidth. You can't seek (it'll crash and kill the stream) but you can pause it.

Calculate days on which Friday the 13th occurs
Alter the years in the first brace expansion to select your year range. Modify date format to your liking but leave " %w" at the end.

List out classes in of all htmls in directory
Lists out all classes used in all *.html files in the currect directory. usefull for checking if you have left out any style definitions, or accidentally given a different name than you intended. ( I have an ugly habit of accidentally substituting camelCase instead of using under_scores: i would name soemthing counterBox instead of counter_box) WARNING: assumes you give classnames in between double quotes, and that you apply only one class per element.

Convert numbers to SI notation
converts any number on the 'stdin' to SI notation. My version limits to 3 digits of precious (working with 10% resistors).

ARP Scan
A much quicker and (not dirtier) option. use the man page for help. On linux/ubuntu you will need to `sudo apt-get -y install arp-scan`.

find directory with most inodes/files
Find which directory in one filesystem that contains most inodes or files.

Create a tar archive with all files of a certain type found in present dir and subdirs
Note: the tar archive must not exist in order to create it. If exists it will only be updated and no already existent files in present search will still remain in the tar archive. The update option has to be used instead of create because the command tar may be executed more than once depending on the number of arguments that find throws. You can see maximum number of arguments with 'getconf ARG_MAX'

Remove an IP address ban that has been errantly blacklisted by denyhosts
download the denyhosts-remove script from http://www.atrixnet.com/remove-an-ip-address-ban-that-has-been-errantly-blacklisted-by-denyhosts/

add all files not under version control to repository
This should handle whitespaces well and will not get confused if your filenames have "?" in them


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