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Capitalize first letter of each word in a string
I find it useless but definitely simpler than #9230

Get full from half remembered commands
Show all commands having the part known by you. Eg: $apropos pdf | less

Create a new file

Create a tar archive with all files of a certain type found in present dir and subdirs
Note: the tar archive must not exist in order to create it. If exists it will only be updated and no already existent files in present search will still remain in the tar archive. The update option has to be used instead of create because the command tar may be executed more than once depending on the number of arguments that find throws. You can see maximum number of arguments with 'getconf ARG_MAX'

setup a tunnel from destination machine port 80 to localhost 2001, via a second (hub) machine.
this is handy when the hubmachine is the only machine that can connect to the destination machine (allowed on ip by firewall) and you want to access it from your laptop.

Backticks are evil
This is a simple example of using proper command nesting using $() over ``. There are a number of advantages of $() over backticks. First, they can be easily nested without escapes: $ program1 $(program2 $(program3 $(program4))) versus $ program1 `program2 \`program3 \`program4\`\`` Second, they're easier to read, then trying to decipher the difference between the backtick and the singlequote: `'. The only drawback $() suffers from is lack of total portability. If your script must be portable to the archaic Bourne shell, or old versions of the C-shell or Korn shell, then backticks are appropriate, otherwise, we should all get into the habit of $(). Your future script maintainers will thank you for producing cleaner code.

find text in a file
this will find text in the directory you specify and give you line where it appears.

Filter IP's in apache access logs based on use
The first sort is necessary for ips in a list to be actually unique.

Recursively Find Images, Convert to JPEGS and Delete
Simple command to convert a large number of images into jpeg-format. Will delete originals after conversion.

Lock your KDE4 remotely (via regular KDE lock)
Forgot to lock your computer? Want to lock it via SSH or mobile phone or use it for scheduled lock? TIP: Make a alias for this (e. g. as "lock"). I found some howtos for ugly X11 lock, but this will use regular KDE locking utility. Note that KDE 3 is using utility with another name (I guess with the same argument --forcelock) Tested on Kubuntu 8.10. Stay tuned for remote unlock.


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