Commands by adrruiz (3)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Check whether laptop is running on battery or cable
In my case it was actually like this...

Lookup hostname for IP address

du with colored bar graph
A more efficient way, with reversed order to put the focus in the big ones.

Fetch the Gateway Ip Address
This is to fetch the Gateway Ip Address of a machine. Use the below format to put the value in a variable if you wish to find the gateway ip in a script $GATEWAY=$(netstat -nr | awk 'BEGIN {while ($3!="0.0.0.0") getline; print $2}')

pretend to be busy in office to enjoy a cup of coffee
Not as taxing on the CPU.

Rename files in batch

Send email with one or more binary attachments
This command uses mutt to send the mail. You must pipe in a body, otherwise mutt will prompt you for some stuff. If you don't have mutt, it should be dead easy to install.

Ad blocking on Ubuntu phone/tablet with hosts file
Will append lines to the hosts file to do some basic ad blocking.

Diff remote webpages using wget

Sum file sizes
Even simpler! Use du ... the -s and -c flags summarize and print a grand total of all files recursively. The -b flag prints in byte format. You can use the -h flag instead to print in human readable format.


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