Commands tagged bash (821)

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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"

Countdown Clock
Countdown clock - Counts down from $MIN minutes to zero. I let the date command do the maths. This version doesn't use seq.

ps with parent/child process tree
Shows a tree view of parent to child processes in the output of ps (linux). Similar output can be achieved with pstree (also linux) or ptree (Solaris).

shuffle lines via perl
Same, without modules... Probably smarter option: just use the shuf command or even sort -R.

Print a row of 50 hyphens

back ssh from firewalled hosts
host B (you) redirects a modem port (62220) to his local ssh. host A is a remote machine (the ones that issues the ssh cmd). once connected port 5497 is in listening mode on host B. host B just do a ssh 127.0.0.1 -p 5497 -l user and reaches the remote host'ssh. This can be used also for vnc and so on.

Find the package that installed a command

RDP through SSH tunnel
This command will: 1. open an SSH tunnel to 2. go to background 3. wait for 10 seconds for the connection 4. during the 10 seconds wait it will localy run 'rdesktop' to connect to the remote host through the created SSH tunnel. Password-less log in can be achieved (when server allows it) by adding '-p ' to the 'rdesktop' command

renames multiple files that match the pattern
Useful when you want to quickly rename a bunch of files.

Start dd and show progress every X seconds


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