Commands by lin72 (2)

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Examine processes generating traffic on your website
I often have to google this so I put it here for quick reference.

Check the package is installed or not. There will show the package name which is installed.
The ^python$ is a package name patten. You can change whatever you want.

cd to (or operate on) a file across parallel directories
This is useful for quickly jumping around branches in a file system, or operating on a parellel file. This is tested in bash. cd to (substitute in PWD, a for b) where PWD is the bash environmental variable for the "working directory"

Squish repeated delimiters into one
This can be particularly useful used in conjunction with a following cut command like $echo "hello::::there" | tr -s ':' | cut -d':' -f2 which prints 'there'. Much easier that guessing at -f values for cut. I know 'tr -s' is used in lots of commands here already but I just figured out the -s flag and thought it deserved to be highlighted :)

view http traffic

List directories sorted by (human readable) size

Prepend a text to a file.
The original command is great, but I often want to prepend to every line.

move contents of the current directory to the parent directory, then remove current directory.
Robust means of moving all files up by a directory. Will handle dot files, filenames containing spaces, and filenames with almost any printable characters. Will not handle filenames containing a single-quote (but if you are moving those, it's time to go yell at whoever created them in the first place).

Look for English words in /dev/urandom
* to get the English dictionary: wget http://www.mavi1.org/web_security/wordlists/webster-dictionary.txt

Extracts PDF pages as images


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