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remote diff with side-by-side ordering.
more information: man sdiff

mount an iso
mounts an ISO file to a directory on the target file system

Display top 5 processes consuming CPU

send a .loc file to a garmin gps over usb
gps data from geocaching.com is provided for free in .loc format.

Run a command as root, with a delay
$ sleep 1h ; sudo command or $ sudo sleep 1h ; sudo command won't work, because by the time the delay is up, sudo will want your password again.

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"

Length of longest line of code
Here's an awk version.

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.

Download all .key files from your android device to your pc.

Rename file to same name plus datestamp of last modification.
FILENAME=nohup.out mv -iv $FILENAME{,.$(stat -c %Y $FILENAME)} does it help ?


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