Commands tagged Debian (99)

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live ssh network throughput test
connects to host via ssh and displays the live transfer speed, directing all transferred data to /dev/null needs pv installed Debian: 'apt-get install pv' Fedora: 'yum install pv' (may need the 'extras' repository enabled)

Short Information about loaded kernel modules
Run this as root, it will be helpful to quickly get information about the loaded kernel modules.

Connect via sftp to a specific port
I use this for connect via sftp to a server listening on a non default ssh port.

Tracklist reaplace backspace to '-'
Requires perl 5.14 or greater

Open a man page as a PDF in Gnome
Would be better if gnome-open would accept std in Should be doable in KDE - anyone?

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Find longest running non-root processes on a machine
If you have ever been trying to look for a list of processes based on their elapsed time you don't need to look any further. This command lets you find the list of processes ordered in a reversed order (oldest at the top) that have been running for over an hour on your system. Any system processes are filtered out, leaving only user initiated ones in. I find it extremely useful for debugging and performance analysis.

Get all mac address
I prefer the ip command to ifconfig as ifconfig is supposedly going to be deprecated. Certain IP address aliases can only be seen with the ip command (such as the ones applied by RHCS).

Follow tail by name (fix for rolling logs with tail -f)
If you use 'tail -f foo.txt' and it becomes temporarily moved/deleted (ie: log rolls over) then tail will not pick up on the new foo.txt and simply waits with no output. 'tail -F' allows you to follow the file by it's name, rather than a descriptor. If foo.txt disappears, tail will wait until the filename appears again and then continues tailing.

Show in a web server, running in the port 80, how many ESTABLISHED connections by ip it has.
The command could show you all conecctions if you skip "grep ESTABLISHED"


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