Tag: linux (page 1 of 2)
As ‘man convert’ states :
The convert program is a member of the ImageMagick suite of tools. Use it to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.
New session : tmux
Attach to a session : tmux a
Detach : Ctrl+b d
Scroll : Ctrl+b PgUp/PgDown (quit with q) also can use mouse after first page up or down
Copy mode : Ctrl+b [ (quit with q)
Split horizontally : Ctrl+b “
Split vertically : Ctrl+b %
Switch pane : Ctrl+b arrow key
Resize pane : Hold Ctrl+b + arrow keys
install xclip so buffer copied insied tmux are also available to X : sudo apt-get install xclip
Assume we have access to the wifi at work and at home. How can I configure my laptop to automatically connect to the right network without using a graphical network manager ? Welcome guessnet !
Read more →
For example, to substitute foo with bar
for f in `grep -lR foo`; do echo -n ">> $f"; sed 's/foo/bar/g' $f > $f.tmp ; mv $f.tmp $f ; echo " done."; done
- 1) for loops on all files containing the text “foo”, grep -l only show the file name with corresponding text inside.
- 3) sed replace foo with bar in all file
- 4) mv save the modification (delete if you don’t want to overwrite the original files, the modified files is named with .tmp at the end)
- 2) & 5) echo: which file is treated
The fastest and more efficient way to batch multiple files encoding conversion :
vim +"argdo se fileencoding=utf-8 | w | bnext" +"q" ` find . -type f -name "*.rsp" `
+”argdo” : execute the following vim commands for each file (filencode, save and next buffer)
+”q” : quit after last one
find : get all files with corresponding name
When I switched to ZSH, and letting BASH behind, I missed some behaviour : one of them was the ability to quit my terminal while some jobs are still alive.
In ZSH, I get a message like this if I exist with running jobs :
zsh you have running jobs
If I exit again, my jobs are killed. But zsh accept some useful option to overide this :
setopt NO_HUP setopt NO_CHECK_JOBS
First one is for not killing process after terminal exit, and second one is for not warning you about it.