Commands using sleep (289)

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Set OS X X11 to use installed Mathematica fonts

grab all commandlinefu shell functions into a single file, suitable for sourcing.
Each shell function has its own summary line, as a comment. If there are multiple shell functions with the same name, the function with the highest number of votes is put into the file. Note: added 'grep -v' to the end of the pipeline, to eliminate extraneous lines containing only '--'. Thanks to matthewbauer for pointing this out.

Uptime in minute
Want to run scripts/programs in the system after starting X minute [ For letting the system to free ]? This will give uptime in minute.

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.

connects to a serial console
cu (call UNIX) establishes a full-duplex connection to another machine (*BSD) using a serial console. It becames more useful than screen if you have to send a BREAK signal. using cu just type "~#". $man cu http://www.openbsd.org/cgi-bin/man.cgi?query=cu&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html

Convert df command to posix; uber GREPable
It is a pain grep-ing/sed-ing/awk-ing plain old df. POSIX it!

nmap port scanning
TCP Connect scanning for localhost and network 192.168.0.0/24

Alert visually until any key is pressed

cat a file backwards
Or "tail -r" on Solaris.

parrallel execution of a command on remote hosts by ssh or rsh or ...
parrallel execution of a command on remote host by ssh or rsh or ... very useful for cluster management (software update)


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