Commands by soredu (0)

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password generator
make password randomly, default 8 chars, using bash3.X only, no external program.

rename / move Uppercase filenames to lowercase filenames current directory
move filename/rename filenames with Uppercase to lowercase in current directory

A simple way to securely use passwords on the command line or in scripts
In this example, where the users gpg keyring has a password, the user will be interactively prompted for the keyring password. If the keyring has no password, same as above, sans the prompt. Suitable for cron jobs. ~/.gnupg/passwd/http-auth.gpg is the encrypted http auth password, for this particular wget use case. This approach has many use cases. example bash functions: function http_auth_pass() { gpg2 --decrypt ~/.gnupg/passwd/http-auth.gpg 2>/dev/null; } function decrypt_pass() { gpg2 --decrypt ~/.gnupg/passwd/"$1" 2>/dev/null; }

Found how how much memory in kB $PID is occupying in Linux
The "proportional set size" is probably the closest representation of how much active memory a process is using in the Linux virtual memory stack. This number should also closely represent the %mem found in ps(1), htop(1), and other utilities.

Check whether laptop is running on battery or cable
If you want to do the same in OS X... grep as necessary for information you need....

Get the IP address of a machine. Just the IP, no junk.
Why use many different utilities all piped together, when you only need two?

Create a file and manipulate the date

Delete backward from cursor, useful when you enter the wrong password

get all Amazon cloud (amazonws etc) ipv6 subnets

Find where a kind of file is stored
In this case searches for where .desktop files are stored. The resulted is a sorted list of the top directories containing such files.

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