Commands by mirams

Commands by mirams (4)

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Remove abstracts from a bibtex file

Remove lines from a bibtex file that have abstracts in them.
This is sample output - yours may be different.
0

sed '/^\s*abstract\s*=\s*{[^\n]*},$/ d' input.bib > output.bib

mirams · 2019-08-01 13:59:38 221
Send an email from the terminal when job finishes

Sends an email from the terminal.
This is sample output - yours may be different.
2

wait_for_this.sh; echo "wait_for_this.sh finished running" | mail -s "Job Status Update" username@gmail.com

mirams · 2017-02-13 18:26:37 155
Provide the ten largest subfolders in the current folder
This is sample output - yours may be different.
3

du -hsx * | sort -rh | head -10

mirams · 2014-04-14 17:54:23 11
Run a command in every (direct) sub-folder

Change the "run_command" to whatever command you want, and remove the "echo" to run it once you are happy.
This is sample output - yours may be different.
0

for i in */; do echo run_command "${i}"; done

mirams · 2013-11-25 18:33:26 10

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Top 10 Memory Processes (reduced output to applications and %usage only)

To have only unique lines in a file

Converts uppercase chars in a string to lowercase

Another alternative is to define a function: lower() { echo ${@,,} } lower StrinG

Clean your broken terminal

When some console full-screen program (minicom, vi, some installers) breaks down your terminal, try this command to revert all options to "sane" settings (sane is a built-in combo of a lot of stty options)

Sort output by column

(separator = $IFS)

Start dd and show progress every X seconds

Adjust "sleep X" to your needs. *NOTE: First sleep is required because bash doesn't have a "post-test" syntax (do XXX while).

Capture screen and mic input using FFmpeg and ALSA

Yet another x11grab using ffmpeg. I also added mic input to the capturing video stream using alsa. Yet I need to find out how to capture audio which is currently playing.

Detach a process from the current shell

Continue to execute the command in background even though quitting the 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"

check open ports without netstat or lsof

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