Commands tagged umount (4)

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Monitor logs in Linux using Tail
Works in Ubuntu, I hope it will work on all Linux machines. For Unixes, tail should be capable of handling more than one file with '-f' option. This command line simply take log files which are text files, and not ending with a number, and it will continuously monitor those files. Putting one alias in .profile will be more useful.

check site ssl certificate dates
remotely connects to an https site, fetches the ssl certificate and displays the valid dates for the cert

Fibonacci numbers with awk
Another combination of seq and awk. Not very efficient, but sufficiently quick.

Get your outgoing IP address
should be very consistent cause it's google :-)

Monitor TCP opened connections

Set GIT_COMMITTER_DATE = GIT_AUTHOR_DATE for all the git commits

List last opened tabs in firefox browser

Rot13 using the tr command
rot13 maps a..mn..z (A..MN..Z) to n..za..m (n..za..m) and so does this alias.

File rotation without rename command
Rotates log files with "gz"-extension in a directory for 7 days and enumerates the number in file name. i.e.: logfile.1.gz > logfile.2.gz I needed this line due to the limitations on AIX Unix systems which do not ship with the rename command.

Search recursively to find a word or phrase in certain file types, such as C code
ack search recursively by default


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