Commands using grep (1,935)

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

Sync MySQL Servers via secure SSH-tunnel
I wanted to keep a backup of my company database server on my local homeserver. After I found maatkit to sync databases, everything except security seemed fine. SSH takes care of that part.

IP addresses connected to port 80
IP addresses and number of connections connected to port 80.

this toggles mute on the Master channel of an alsa soundcard

Backup trought SSH

tar via network

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

One liner to kill a process when knowing only the port where the process is running

determine if tcp port is open
@putnamhill, no need if statement in that case. && is a AND and || is a OR

function to compute what percentage of X is Y? Where percent/100 = X/Y => percent=100*X/Y
This function make it easy to compute X/Y as a percentage. The name "wpoxiy" is an acronym of "what percentage of X is Y"


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