All Questions
190 questions
-4votes
0answers
55views
Creating in Linux files in GB or MB range by various random size by read a file [closed]
In Linux in Bash i have this script (thanks to Ed Morton) . $ cat ./tst.sh #!/usr/bin/env bash while read -r idx sfx size; do echo fallocate "file${idx}.${sfx}" "$size" done &...
- 533
-2votes
1answer
111views
Creating in Linux files in GB or MB range by various size by read a file [closed]
In Linux with Bash, there is the File numbers_in_one_line. In this file there is only one line with several numbers, all separated by spaces. These numbers are the value in bytes for creating files ...
- 533
0votes
1answer
87views
How to create splittet random files and join them with dmsetup
In Linux in Bash, there is a script, a part of the script is this while true ; do echo awk -v x=$(<"$TEMPDIR"size_container_in_byte) -v n=$(<"$TEMPDIR"parts) 'BEGIN{...
- 533
-7votes
2answers
94views
How can I pick random items from a list, but some more often than others, in a Bash config file? [closed]
In Linux, using Bash, I have two scripts: script.sh is the main script, and script_config.sh is the configuration for script.sh. In script.sh, I do source script_config.sh to load all the config ...
- 533
-3votes
1answer
50views
Rename files, remove the first four signs [duplicate]
There are many files in this format: IMG_20240717_191421.jpg IMG_20240620_165358_BURST001_COVER.jpg IMG_20240624_173513_2.jpg how can they renamed in Linux in Bash to: 20240717_191421.jpg ...
- 533
-1votes
1answer
72views
Best tool to convert xlsx to csv
I need to install something that allow me through a script bash or if I can do it without install any external tool it would be great. The thing is I read about csvkit but is a tool of python and i ...
2votes
1answer
167views
select in a script
In Linux in Bash in a Script i use this: #!/bin/bash while true; do while true; do read -r -p 'enter number [4-999]: ' num if [[ $num =~ ^([4-9]|[1-9][0-9]{1,2})$ ]]; then ...
- 533
-4votes
2answers
110views
How to write in Linux in Bash in shellscript a part that can do something like this
How to write in Linux in Bash in shellscript a part that can do something like this enter a number must be in a range from 4-999 if not, ask again to enter enterednumber * 5 * randomnumber [1-9] (...
- 533
1vote
1answer
110views
add a randomize option in a bash script
in a bash script i do run this: seq 1 $(<howmany.txt) | xargs -I% -n1 -P$(<parallel.txt) mycommand --infile file% --option A --outfile file%.new it works. the values in howmany.txt and parallel....
- 533
0votes
1answer
36views
Linux Shell Script replace last shown lines at the screen, not write it under the last once
i run a script from bring formated numbers to the screen : #!/bin/sh while true ; do echo awk -v x=987654321 -v n=8 'BEGIN{srand(); while (--n) {$++NF = int(rand() * x / n); x -= $NF}; $++NF =...
- 533
0votes
1answer
60views
join a specific number of files/devices in linear mode together in a linux system
For joining in Linux files/devices in linear mode together i have this script dm-joinlinear.sh from join files/devices in linear mode together in a linux system , thanks telcoM #!/bin/sh usage() { ...
- 533
0votes
1answer
70views
Use fallocate with numbers from text file
For testing i create at my Linux-System the file list.txt. In there are numbers like: 4 1 5 2 3 (sometime there are more or less numbers) How do i run these numbers with fallocate? fallocate -l ...
- 533
0votes
0answers
53views
SLURM job script - why is the tmp local directory deleted before archiving can occur? How to prevent this?
I wrote a SLURM job script to run a computational chemistry calculation using the CREST program (part of the xtb software package). In the script, I create a temporary directory on the local storage ...
0votes
0answers
90views
keep sudo effective without password after update sudo package itself
I want to write an automation script in Bash that requires frequent use of the sudo command. To avoid entering my password repeatedly after the sudo timeout, I've tried the following: #!/bin/bash sudo ...
- 187
0votes
0answers
49views
Why when using the "env -i" command the environment is not really empty? [duplicate]
I am playing with the command env and the option -i of the command. According to the documentation when I use env -i ./myscript.sh I should be getting an empty environment for my script. I gave it a ...
