Binaries and scripts
Binaries
date
print or set the system date and time
* get dates for e.g. file names : date -Iminutes
maim
maim (make image) takes screenshots of your desktop. It has options to take only a region, and relies on another program called slop to query the user for regions using the graphical interface.
- full sceenshot :
maim destination.png - current window screenshot :
maim -i (xdotool getactivewindow) destination.png - selected area screenshot :
maim -s destination.png - name output based on time :
maim (date -Iminutes).png - get color of selected pixel :
maim -st 0 | convert - -resize 1x1\! -format '%!!![]()()(pixel:p{0,0})' info:-
xclip
command line interface to X selections (clipboard)
- pipe screenshot to clipboard :
maim -s | xclip -selection clipboard --target image/png - pipe program output to clipboard :
head file.txt | xclip -selection clipbaord
tac
reverse input line-wise
rev
reverse input character-wise
didder
didder is an extensive, fast, and accurate command-line image dithering tool. github
ffmpeg
Create animated gif from screen area
ffmpeg -framerate 25 -f x11grab (slop -f '-video_size %wx%h -i :0.0+%x,%y' | string split ' ') ~/Videos/capture_(date -Iminutes).mkv
Scripts
Find and replace using sed across all occurrances in a folder
find . -type f -exec sed -i.txt "s/foo/bar/g" {} \;
Rename file extension
!#/bin/bash
for f in *.JPG;
do mv -- "$f" "${f%.JPG}.jpg";
done
Get paste-able filename list (used for {log} entries)
ls -1 2021-08-*
Migrating from .mmx to .mx
Images
find . -type f -name "*.md" -exec gsed --regexp-extended -i.bak "s/\!!()]*))?\)/!(^\})*)\}/[\2)(\1)/g" {} \;