Commands tagged random (98)

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shutdown pc in 4 hours without needing to keep terminal open / user logged in.
From the 'disown' man page: disown prevents the current shell from sending a HUP signal to each of the given jobs when the current shell terminates a login session.

scan whole internet and specific port in humanistic time
apt-get install git gcc make libpcap-dev git clone https://github.com/robertdavidgraham/masscan cd masscan make install -pDm755 bin/masscan /usr/bin/masscan

create thumbnail of pdf

Insert the last argument of the previous command
for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls

Using tput to save, clear and restore the terminal contents
Very useful for interactive scripts where you would like to return the terminal contents to its original state before the script was run. This would be similar to how vi exits and returns you to your original terminal screen. Save and clear the terminal contents with: $tput smcup Execute some commands, then restore the saved terminal contents with: $tput rmcup

Startup a VPN connection through command line

Show top committers for SVN repositority for today

Use last argument of last command
Bash shortcut to work with the last argument of your last command

Averaging columns of numbers
This example calculates the averages of column one and column two of "file.dat". It can be easily modified if other columns are to be averaged.

Ultra fast public IP address lookup using Cloudflare's 1.1.1.1


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