commandlinefu.com is the place to record those command-line gems that you return to again and again.
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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
Run this in / in a chroot to get your own proc there.
Might match "ping 192.168.0.1" and then run it.
Works for most distributions, tested on Ubuntu, Fedora, CentOS, Gentoo, SUSE, RedHat.
Debian and Slackware:
fold wraps text at 80 characters wide, and with the -s flag, only causes wrapping to occur between words rather than through them.
Creates a full snapshot of your current vim session, including tabs, open buffers, cursor positions, everything. Can be resumed with vim -S . Useful for those times when you HAVE to close vim, but you don't want to lose all your hard-opened buffers and windows. The ! will cause vim to overwrite the file if it already exists. It is not necessary, but useful if you frequently save to the same file (like session.vim or something).
Symlinks all files in the base directory to the target directory then lists all of the created symlinks.
* Adjust the find command to your own filters.
* The -P flag forces to keep absolute paths in the tarball, so that you can be sure that the exact same file hierarchy will be created on the second machine.
Opens or closes the cdrom device.
Useful to archive files once a day:
cp file file.$(date --iso)
Displays a list of all the basic keyboard shortcuts in screen.
You can then switch from a file to another with ^W^W
This command gives a model information of a computer. Also useful in determining the host is a VM machine or actual physical machine.
Useful in scripts while you just need an IP address in a variable.
Deletes thousands of files at one go, I'm not able to recall the exact # of files that rm can delete at one go(apprx. around 7000.)
useful for loops like for i in $(cat list_of_servers); do ssh -q $i hostname; done
if there is an unreachable server, you can just press ctrl + \ to skip that server and continue on with the loop
This will show all physically connected SATA (and SCSI) drives on your system. This is particularly useful when troubleshooting hard disks.... or when a mount point seems to be missing.
Create an ISO Image from a folder and burn it to CD (Os X)