Alter "AddHandler php5-cgi .php" and "AddHandler php4-cgi .php" entries to new "AddHandler x-httpd-php5 .php" respective php4 entries in all .htaccess files under /var/www

Only shows files with actual changes to text (excluding whitespace). Useful if you've messed up permissions or transferred in files from windows or something like that, so that you can get a list of changed files, and clean up the rest.

When you have one of those (log)files that only has epoch for time (since no one will ever look at them as a date) this is a way to get the human readable date/time and do further inspection.

Mostly perl-fu :-/

More of the same but with more elaborate perl-fu :-)

Replace 'this' with 'that'

works on Linux and Solaris. I think it will work on nearly all *nix-es

This should work anywhere perl and grep is available. :P

205413

real 0m0.497s

user 0m0.220s

sys 0m0.268s

205413

real 0m3.776s

user 0m3.340s

sys 0m0.424s

*********

** EDIT: turns out this perl liner is mostly masturbation. this is slightly faster:

sh-3.2$ time { find . -maxdepth 1|wc -l; }

205414

real 0m0.456s

user 0m0.116s

sys 0m0.328s

** EDIT: now a slightly faster perl version

sh-3.2$ time perl -e 'if(opendir D,"."){++$c foreach readdir D}print $c-1,"\n"'

205414

real 0m0.415s

user 0m0.176s

sys 0m0.232s

substitute the URL with your private/public XML url from calendar sharing settings

substitute the dates YYYY-mm-dd

adjust the perl parsing part for your needs

Fetches the IPs and ONLY the IPs from ifconfig. Simplest, shortest, cleanest.

Perl is too good to be true...

(P.S.: credit should go to Peteris Krumins at catonmat.net)

Found this useful for scripts where I needed to work with the machine's IP. If $DEVICE is not specified, this will return all IPs on the machine. If $DEVICE is set to a network adapter, it will return just that adapter's IP.

Lists virtualhosts currently enabled for apache2, showing the ServerName:port, conf file and DocumentRoot

This command will output 1 if the given argument is a valid ip address and 0 if it is not.

Mouse around the title of this item, and note that your cookies are being logged to the console. If I were evil, I could instead send everyone's cookies to my site, and then post up-votes on all my submissions using their cookies, and try to delete every other submission, until clfu was completely pwned by me, redirecting people to malware and porn sites, and so on.

Update - now fixed.

There's probably a more efficient way to do this rather than the relatively long perl program, but perl is my hammer, so text processing looks like a nail.

This is of course a lot to type all at once. You can make it better by putting this somewhere:

Then, to look up any command, you can do this:

This is similar to http://www.colivre.coop.br/Aurium/CLFUSearch except that it's just one line, so more in the spirit of CLF, in my opinion.

OK, not the most useful but a good way to impress friends. Requires the "display" command from ImageMagick.

Taken from http://www.earthinfo.org/linux-disk-usage-sorted-by-size-and-human-readable/

Using perl, here, we grep the man page of fetchmail to find the paragraph starting with '-k | --keep' and ending before the paragraph starting with '-K | --nokeep'

Good for summing the numbers embedded in text - a food journal entry for example with calories listed per food where you want the total calories. Use this to monitor and keep a total on anything that ouputs numbers.

This one-liner will the *delete* without any further confirmation all 100% duplicates but one based on their md5 hash in the current directory tree (i.e including files in its subdirectories).

Good for cleaning up collections of mp3 files or pictures of your dog|cat|kids|wife being present in gazillion incarnations on hd.

md5sum can be substituted with sha1sum without problems.

The actual filename is not taken into account-just the hash is used.

Whatever sort thinks is the first filename is kept.

It is assumed that the filename does not contain 0x00.

As per the good suggestion in the first comment, this one does a hard link instead:

Print out list of all branches with last commit date to the branch, including relative time since commit and color coding.

tail with coloured output with the help of perl - need more colours? here is a colour table:

http://www.tuxify.de/?p=23