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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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!$ recalls the last argument of the previous command. This is very useful when you have to operate several operations on the same file for example.
only works for freeBSD where ports are installed in /usr/ports
credit to http://wiki.freebsd.org/PortsTasks
uses tar to dump files from /orignl/path to /dst/dir. i find tar's out more readable than cp, and it doesn't mess with modified dates.
cd - would return to the previous directory of your cd command. NB: previous dir is always stored in $OLDPWD variable.
Useful to quickly get back to the Windows root directory of the current drive from a sub-directory within that drive.
Works also without space between 'cd' and backslash: 'cd\' or 'cd \' have the same effect
In the Windows cmd.exe window, you can change the directory using cd, but if you need to go to a directory on another drive, you need to type in the drive letter and colon first (e.g. d:). With the /d on cd, you don't need this intermediate step.
Tested on Windows XP
If you are in /begin/path/with/XX/pattern
cd XX YY
will change your current directory to
Please see sample output.
Copy data to the destination using commands such as cpio (recommended), tar, rsync, ufsdump, or ufsrestore.
Let the source directory be /source, and let the destination directory be /destination.
# cd /source
# cd ..
# find ./source -depth -print | cpio -cvo> /destination/source_data.cpio
# cd /destination
# cpio -icvmdI ./source_data.cpio
# rm -rf ./source_data.cpio
Just type 2 characters and enter, you will be back.
Greps IRC logs for phrases and lists users who said them.
This comes in handy for me when I am developing and testing Perl command line scripts.
I find this handy for linking all the bin files in a package to /usr/bin or all the man files to /usr/share/man. You can replace * with */* to operate on all the files in subdirectories.