LinuxQuestions.org - Blog Entries

Simple idea for a debug verbosity tool on bash scripts

Posted 09-07-2021 at 09:06 AM by the dsc (linux-related notes)
Updated 08-05-2023 at 08:37 PM by the dsc

I used to just have lots of "echos" around my scripts printing where it is on a loop or whatever, so I have a better idea of whats happening, often somewhat more clear than with "bash -x", even though that also may help, of course. But the odds are that I'd at some point just leave such debug echos there while the script runs on a daily basis on the background, just helping .xsession-errors to become enormous, for no good reason, since it's working and I'm not reading it. And...

the dsc

Member

Posted in Uncategorized

Views 371 Comments 0 the dsc is offline

Simple script-command to mount partitions by label

Posted 08-15-2021 at 02:43 PM by the dsc (linux-related notes)

Tags bash, danger, mount, risk, sudo

Largely based on this answer on askubuntu. I hope nothing atrocious results from some situation where it ends up trying to mount something a given user should not, or something. May require tweaking either the script or one's sudo permissions for the commands doing the hard work, I don't know how "default" my settings are.

Code:

#!/bin/bash

echo ${@} | while read input ; do 

for label in /dev/disk/by-label/${input} ; do 

label=$(basename

...

the dsc

Member

Posted in Uncategorized

Views 521 Comments 0 the dsc is offline

TheOuterLinux Mμse - An interesting way to make a text-based game using catimg and play

Posted 06-22-2020 at 05:30 PM by TheOuterLinux

Tags ascii, bash, catimg, commandline, game

Cross-posted from: https://theouterlinux.gitlab.io/Publ...CatimgGame.txt
RSS for website version: https://theouterlinux.gitlab.io/Publ...ticleFeed.atom

The following is a BASH script that with the help of 'catimg' and the 'play' command, you can create a classic text-adventure game but have an image shown just above the text. See notes inside of the script.

Code:

#Discussion URL: https://www.reddit.com/r/TheOuterLinux/comments/esgvmf/catimg_and_play_to_for_textbased_games/.compact

...

TheOuterLinux

LQ Newbie

Posted in Uncategorized

Views 379 Comments 0 TheOuterLinux is offline

BASH replace a line in file

Posted 04-05-2020 at 05:20 PM by karanis

Tags bash

karanis

LQ Newbie

Posted in Uncategorized

Views 296 Comments 0 karanis is offline

BASH extract fields from string

Posted 04-05-2020 at 05:19 PM by karanis

Tags awk, bash

https://en.wikibooks.org/wiki/Cut

link above have nice examples

Examples of use of similar tools in cut's domain:

echo a b|awk '{print $2}'
Displays "b", separating fields by any number of tabs or spaces. Thus, for awk, "b" is the 2nd field, while for cut -d" ", "b" is the 3rd field.
echo a b|awk '{print $2 $1}'
Displays "ba", preserving the order of the fields as specified....

karanis

LQ Newbie

Posted in Uncategorized

Views 346 Comments 0 karanis is offline

Page 1 of 9

Last »