Post a status update to identi.ca using just curl

curl --basic --user binnyva:PASSWORD --data-ascii "status=The new status goes here" http://identi.ca/api/statuses/update.xml

Show link status of ‘eth0′

mii-tool eth0

Show link status of all interfaces

ip link show

Don’t show the untracked files in git status

git status | perl -pe "exit if(/Untracked files\:/)"