Commands by jmellert (0)

  • bash: commands not found

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Get information about libraries currently installed on a system.
This command is very helpful when we need to duplicate a test scenario and first we want to find out the installed libraries together with the version and release numbers and architecture. (look example) Command can be tuned by choosing just the names of libraries we are interested in. For example glibc and gcc.

Play all files in the directory using MPlayer
Skip forward and back using the < and > keys. Display the file title with I.

grep for minus (-) sign
Use flag "--" to stop switch parsing

eavesdrop
Record off the microphone on a remote computer and listen to it live through your speakers locally.

check open ports without netstat or lsof

Display two calendar months side by side
Displays last month, current month, and next month side by side.

Count the number of characters in each line

ping a host until it responds, then play a sound, then exit
Audio acknowledgement for host availability. When running the command from a Linux systems, you can use "festival" or "espeak" instead of "say".

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"

The wisdom of Cave Johnson
There's been a similar Futurama thing around for a while, which grabs a quote from the /. headers [curl -Ism3 slashdot.org | egrep "^X-(F|B|L)" | cut -d \- -f 2- | fmt -w $(tput cols)]. Same deal, but more likely to stop working when someone forgets to pay the bill on the domain. Until then: Cave Johnson!


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