Commands using head (314)

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Fibonacci numbers with awk
Another combination of seq and awk. Not very efficient, but sufficiently quick.

Add a progress counter to loop (see sample output)
For this hack you need following function: $ finit() { count=$#; current=1; for i in "$@" ; do echo $current $count; echo $i; current=$((current + 1)); done; } and alias: $ alias fnext='read cur total && echo -n "[$cur/$total] " && read' Inspired by CMake progress counters.

Retrieve the size of a file on a server
- Where $URL is the URL of the file. - Replace the $2 by $3 at the end to get a human-readable size. Credits to svanberg @ ArchLinux forums for original idea. Edit: Replaced command with better version by FRUiT. (removed unnecessary grep)

route output as next command's parameters

sort list of email addresses by domain.tld
email random list can be created here: https://www.randomlists.com/email-addresses

Comment out a line in a file
This will comment out a line, specified by line number, in a given file.

Show sorted list of files with sizes more than 1MB in the current dir

Watch Aljazeera live

Clear ARP table in linux.
Clears the "arp" table, without entering manually addresses (tested in Ubuntu).

list block devices
Shows all block devices in a tree with descruptions of what they are.


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