Commands by adamm9 (4)

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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Find usb device in realtime
Using this command you can track a moment when usb device was attached.

yum -q list updates | tail -n+2

quickest (i blv) way to get the current program name minus the path (BASH)
Useful in shell scripts when you're trying to get the shell script name without the full path - and easier than awking or cutting. Bash pattern matching and variable manip is fun.

Alert visually until any key is pressed
I learned a few things reading this command. But I did run into a few issues: 1. On systems that don't use GNU echo (e.g. macOS 10.14.5 Mojave), the e option may not be supported. In this case ANSI escape codes will echoed as text and the terminal will not flash, like this: \e[?5h\e[38;5;1m A L E R T Thu Jun 20 16:31:29 PDT 2019 2. Since the read command strips\ignores leading backslashes, if a user types the backslash character once in the loop, it will not break. Typing backslash twice in a loop will break as expected. 3. The foreground color is set to red (\e[38;5;1m) on every loop. This could be set once before we call while, and then reset once when the loop breaks. 4. Instead of resetting the foreground color when it breaks, the video mode is set back to normal (\e[?5l). This has the effect of leaving the terminal text red until it is manually reset. The alternative I'm proposing here addresses these issues. I tested it on macOS and Arch Linux.

list block devices
Shows all block devices in a tree with descruptions of what they are.

kill all process that belongs to you
This will probably kill any user sessions and/or ssh connections to other servers you might have active.

the executable that started the currently running oracle databases and the ORACLE_HOME relative to each
get a list of currently running oracle dbs (identified by the pmon process) show the executable that spawned the process and show the ORACLE_HOME relative to the environment within which the process is running tailored to AIX (sed on linux behaves...differently) suggestions for a better way...please.

Get current Xorg resolution via xrandr
Not sure if it works the same on any shell.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

bash auto-complete your screen sessions
this bash command sets it so that when you type "screen ", it searches your running screens, and present valid auto-complete choices. The output is . Note: You must have programmable completion enabled. Check with "shopt progcomp", set with "shopt -s progcomp"

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