Commands by tekiomo (1)

What's this? is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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List all commands present on system
List all commands present on system by folder. $PATH contains all command folder separated by ':'. With ${PATH//:/ }, we change ':' in space and create a list of folder for ls command.

list processes with established tcp connections (without netstat)
Uses lsof to list open network connections (file descriptors), grepping for only those in an established state

Hits per hour apache log

Google Translate
substitute "example" with desired string; tl = target language (en, fr, de, hu, ...); you can leave sl parameter as-is (autodetection works fine)

Locking and unlocking files and mailboxes
Programs for locking and unlocking files and mailboxes.This package includes several programs to safely lock and unlock files and mailboxes from the command line. These include: lockfile-create lockfile-remove lockfile-touchlock mail-lock mail-unlock mail-touchlock These programs use liblockfile to perform the file locking and unlocking, so they are guaranteed compatible with Debian's file locking policies.

Remote copy directories and files through an SSH tunnel host
If you have lots of remote hosts sitting "behind" an ssh proxy host, then there is a special-case use of "rsynch" that allows one to easily copy directories and files across the ssh proxy host, without having to do two explicit copies: the '-e' option allows for a replacement "rsh" command. We use this option to specify an "ssh" tunnel command, with the '-A' option that causes authentication agent requests to be forwarded back to the local host. If you have ssh set up correctly, the above command can be done without any passwords being entered.

trace the system calls made by a process (and its children)
strace can be invaluable in trying to figure out what the heck some misbehaving program is doing. There are number of useful flags to limit and control its output, and to attach to already running programs. (See also 'ltrace'.)

list files recursively by size

Compare two directory trees.
This uses Bash's "process substitution" feature to compare (using diff) the output of two different process pipelines.

set wallpaper on windowmaker in one line
set directly the wallpaper on windowmaker , use this command with display of imagemagick :)

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