Questions tagged [bash]
Bash (Bourne-Again SHell), is the default interactive user shell used in Ubuntu. Use this tag for questions specific to Bash, as opposed to generic POSIX shells.
11,263
questions
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How to move files matching patterns from file?
I have a file storage directory used together with a MySQL DB.
Some of the files in the directory are orphaned (i.e. created by mistake, deleted in the DB but not on disk, otherwise not used).
I was ...
- 213
0
votes
0
answers
21
views
Bash Script that zips a directory as "cert_$date.zip", then upload the zip file with curl to external server
I have a folder that I want to zip a directory, then upload it to a web server with curl.
Backup folder: /opt/ladapter/data
Zip File: /opt/ladapter/cert_$date_ymd.zip
Bash script:
cert_script="#...
- 213
0
votes
0
answers
14
views
Wine not properly uninstalled [duplicate]
So i installed wine a long time ago, However its pretty heavy so i decided to uninstall it.
However, There's still a wine folder in the x86 64 linux gnu Folder:
thearchcoder@thearchcoder-HP-EliteDesk-...
1
vote
0
answers
32
views
Changing bash doesn't work
I'm using Starship, but don't get the proper changes, and I have to run the command bash just to see the starship terminal. I want this to happen by default.
I also have Tmux, when I load that, it ...
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0
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53
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X11 DISPLAY Configuration for SSH and Nvidia Optimus Graphics
There are one Intel integrated graphics and the other Nvidia graphics card in my remote box, where OpenSSH and X11 servers run on Ubuntu Desktop 24.04. The graphics drivers and utils are installed ...
- 495
-3
votes
1
answer
78
views
script does not work
I can successfully execute this command from the terminal:
sudo cp -R -u "/media/gabriela/Windows/Data/Untitled Folder" /media/gabriela/USB
But the following script does not work, with the ...
0
votes
2
answers
130
views
How to use asterisk (*) in bash array
I want to stored all command args in an array but it only works when all args have no any (*).
Here is a test without using array:
mkdir -p /tmp/hello
echo "hello" > /tmp/hello/hello.txt
...
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votes
1
answer
89
views
Unexpected grep Messages During SSH Command Execution
When attempting to execute SSH commands on remote servers using grep within a Bash script, I encounter unexpected grep messages instead of the expected command output.
error message :
The issue ...
-2
votes
1
answer
29
views
Transmission Remote List magnets/URLs
I use transmission remote terminal command and I want to re-create the current state of my torrent files in other computer using a bash script.
I want to create a bash script that will list all the ...
-1
votes
0
answers
32
views
Ubuntu Login Loop because of $PATH problems
I need your help. I'm stuck with the Ubuntu Login Loop and I guess, it happened because I tried to add the PATH for Laravel to .bashrc. This went wrong and now I tried a lot to put into .bashrc, ....
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0
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29
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My clickable .sh shell script keeps opening in text editor and does not run the command when clicked [duplicate]
I am trying to write a script that when clicked runs commands. For example: "open browser and go to website" etc. etc.
Here is what I have done:
I have ran chmod +x test.sh on the file
I ...
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0
votes
1
answer
72
views
bash: hash: hashing disabled
When opening a terminal window on Ubuntu 24.04, I get this message:
bash: hash: hashing disabled
Its caused by this line:
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
...
- 1,091
1
vote
1
answer
85
views
.desktop file not launching on double click
I'm having trouble getting my .desktop application to launch with a double click. I've created a .desktop file that runs a .bash script, and I've given all necessary permissions to both the .desktop ...
- 11
2
votes
2
answers
500
views
How can I print the result of a comparison that uses "=~"?
I try to check whether there is a window with a certain title ("Enter password") in the list of windows.
To understand whether my script works, I'd like to print the result of the comparison....
- 29
0
votes
1
answer
36
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Shell script to get specific file names as string from particular directory which are modified before 1 day [closed]
I written shell script to get names of all the files that start with a certain name, as well as all the files that have been edited within the previous day. These file names should be assigned to a ...
-1
votes
1
answer
88
views
is there a default folder /etc/bin in ubuntu 24.04
I recently tried to move an executable to somewhere as part of the PATH and I accidentally renamed it and put it as /etc/bin instead of inside /etc/bin :
sudo mv exec /etc/bin
Now my /etc/bin is the ...
0
votes
0
answers
70
views
"Permission denied" even when trying to open file (/proc/sys/vm/drop_caches) as root
When I do cat /proc/sys/vm/drop_caches as root (sudo bash) I get this error:
cat: /proc/sys/vm/drop_caches: Permission denied
So how do I see the contents of that file?
()kswapd0 is running at 50% ...
- 221
0
votes
1
answer
70
views
Bash script doesn't work when used with keyboard shortcut, but works in the console
With the help of AI I made a script, which toggles between the two audio devices chosen by me.
Since the name of the device changes on each system reboot, the script finds the devices by their ...
- 111
-1
votes
0
answers
39
views
Using Perl rename with minus sign
I am using the official Ubuntu verion of Perl rename. After batch renaming some files need a second round but I have problems with following remaining filenames:
' - <filename>' -- that is: ...
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0
votes
1
answer
65
views
Listing Folders and Files with the same name
I have a folder with extracted ZIP files in it.
(Extracted ZIP folders are the same name as the ZIP file without ZIP in the folder name
Example: File1.zip extracts to the file1 folder
I need to show ...
- 29
5
votes
2
answers
437
views
Fake ext4 file creation dates for a large number of files by setting the system time
Recently, I downloaded a large number of photos from a cloud service to my local machine (Ubuntu 23.10). As is expected, the creation/birth date of those files was set to the actual download date. Now,...
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3
votes
1
answer
143
views
How to use setfacl for adding the same permission
I found the setfacl from this link:
https://stackoverflow.com/questions/39397548/how-to-give-non-root-user-in-docker-container-access-to-a-volume-mounted-on-the
sudo setfacl -m u:$(id -u):rwx -R /some/...
- 393
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votes
2
answers
66
views
Permission Denied Error When Cloning Cheatsheets with Cheat
I'm trying to set up cheat on my Ubuntu system. When I run the command to initialize the config file and download the community cheatsheets, I encounter a permission denied error. Here is the process ...
- 308
0
votes
1
answer
37
views
How to escape a GVariant dictionary in bash script
I'm writing a bash script to change the display scale:
#!/bin/bash
cmd="dconf write /com/ubuntu/user-interface/scale-factor \"{'DP-4': 7, 'eDP-1': 7}\""
$cmd
The dconf command ...
- 41
0
votes
1
answer
68
views
Commands in the same line with sshpass not recognized
I was running a script normally. But suddenly, all the commands in the same line with sshpass started being not recognized. For instance:
sshpass -p "$password" rsync -a -e "ssh -o ...
0
votes
0
answers
36
views
X session is not starting with the network disabled
I have an Ubuntu 22.04.4 installation with a Xanmod 15 khz patched kernel and bash startup and a tty1 override for a custom script launch.
This script launches an X session with openbox plus a ...
- 1
0
votes
2
answers
101
views
Rename files by changing the position of strings
I want to renaming several files with names, such as:
YL.BIRA..BHE.M.2001.324.210818.SAC
I want to rename it as:
YL.BIRA..M.2001.324.210818.BHE.SAC
I would appreciate your help. Thank you!
6
votes
1
answer
707
views
Should I use the "time" keyword, the "/usr/bin/time" command or the "times" builtin to time the execution of commands in bash?
I have been delving into bash for the first time and want to try to test some code to compare different ways of achieving the same end. As part of this I have come across the time and times methods of ...
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1
vote
2
answers
630
views
"unknown option: --bash" when opening the terminal
Whenever I open the terminal, I get the following line as the first line in the terminal:
unknown option: --bash
Here is a screenshot of my terminal:
Here is my ~/.bashrc file:
# ~/.bashrc: executed ...
2
votes
1
answer
63
views
How to mount host directory and modify its contents inside the Docker layer
Here are the docker layers I want to implement:
https://stackoverflow.com/questions/31222377/what-are-docker-image-layers
I want to mount a folder from host to docker with:
docker run \
-v /path/to/...
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6
votes
3
answers
1k
views
Can I get the location of bash before executing a script?
I have a stupid question. Can I get the bash location, such as "/bin/bash" or "/usr/bin/bash", before I execute the script?
I tried to do this:
#!`which bash`
Or this similar ...
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4
votes
1
answer
430
views
Understanding the meaning of the + and - signs after completion of a task run in background
I am often running multiple tasks in the background by launching my commands as follows
for ...; task...; done > log 2>&1 &
When my tasks are done, I will receive in the prompt a ...
1
vote
0
answers
56
views
Error reading CPU table when running `apt` inside a chroot environment on Ubuntu server
Following this question, I am trying to set up a chroot environment on my Ubuntu server running on a Raspberry Pi. Here are the steps I followed to create the chroot environment:
mkdir -p myenv
mkdir -...
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0
answers
47
views
Setting prompt using PS1 in a script puts cursor at beginning of line
I want to set the title and prompt in a command line window using the following command:
PS1='\[\e]0;deploy\a\]\[\e[1;32m\]\u@\h\[\e[0m\]:\[\e[1;34m\]\w\[\e[0m\]\$ '
If it is entered interactively, ...
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1
vote
0
answers
27
views
Download file from TeamCity with SSO using bash
I need to download an artefact from TC using a bash script (it should work in Ubuntu 22.04.3 deb based server). TeamCity authentication mode is SSO only via MS account and 2FA authentication. Is it ...
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2
votes
1
answer
96
views
Adding error handling to simple backup script
I have created the following simple backup script for my Ubuntu machine:
#!/bin/bash
set -e
echo "Mounting network share"
sudo mkdir -p /var/backup
sudo mount -t nfs 192.168.178.33:/...
- 121
0
votes
0
answers
44
views
useradd: group '' does not exist when using -g to define primary group upon user creation
I'm following the exploratory exercises from https://learning.lpi.org/en/learning-materials/010-160/5/5.2/5.2_01/ and according to them this should work
yet, when I try this on ubuntu 22.04 ,brand ...
- 119
0
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0
answers
33
views
Use netplan to have a failover wifi interface between two wifi adapters
I have two wifi adapters on my devices, one built in and the other requiring drivers.
I use unattended upgrades and have been having issues when a kernel upgrade happens the drivers for the device ...
0
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1
answer
95
views
ubuntu server 24.04 print [0.004s] or bash: 1716451538,009859: value too great for base (error token is "009859") each command
I've just installed ubuntu server 24.04 on bare metall. After each command terminal print "time" in square brakets:
[0.004s]
like
[0.006s] andrey@bonanza-server:~/iso$ rm -r ./*
[0.-55s] ...
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0
votes
0
answers
66
views
Trying to concatenate 2 bash variables doesn't work
Trying to concatenate 2 bash variables doesn't work.
I've got the following script:
#!/usr/bin/env bash
echo Backup WSL
bdir=/mnt/f/wslbackup/
echo Backup Dir is $bdir
rel=$('/mnt/c/program files/...
0
votes
1
answer
61
views
Running multiple bash scripts at once
I've like 10 repos running in the same machine, I some times change machines and want to deploy them automatically and fast so I made this script to execute each repo installation file at the same ...
0
votes
0
answers
34
views
Existence of utility use distribution dataset?
I'm not sure if this is the right board to ask this. I'm curious if anyone has stumbled upon a dataset or study of terminal input distributions. Separation of data by fields such as general tasks or ...
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0
votes
0
answers
38
views
Unable to boot into GUI on Ubuntu, stuck at tty1
I'm encountering an issue with my Ubuntu system where it boots into tty1 instead of the graphical user interface (GUI) after startup. Here are the steps I've taken and the details of the problem:
...
1
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0
answers
31
views
Asus TP500LA screen flipping issues
A little while ago i manages to pick up a Asus TP500LA off the side of the road and installed Ubuntu 20.04.6 LTS onto it. works great but the screen doesn't flip when rotated 360 degrees.
what i have ...
0
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0
answers
26
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Managing applications with different installers sources and automatic updates: solving the problem
At the same time different versions of the app are installed from different sources one version of the app is installed from flatpak, another from snap and the third from a third party ubuntu repo, i....
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0
votes
2
answers
89
views
How to execute scripts from a samba drive (cifs mounted)?
If I'm starting a shell script "test.sh" from a samba share, I've got an error:
bash: ./test.sh: /bin/sh: Defekter Interpreter: Eingabe-/Ausgabefehler
(bash: ./test.sh: /bin/sh: bad ...
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6
votes
1
answer
331
views
`command echo --help` invokes bash internal echo function
According to help command, the help of bash, command can be used to trigger the external program x, if x exists as a builtin function too:
command: command [-pVv] command [arg ...]
Execute a ...
- 6,825
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votes
1
answer
85
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bash/sed replace string of repeating string within a string
I have a file where each line represents data that may be encompassed with a string like "o o ". I need to replace the string between the encompassing characters with another string. The &...
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2
votes
1
answer
55
views
Remove /dev mount point without unmount in Host
Here is the unmount method for unmounting all previously mounted folders:
https://unix.stackexchange.com/questions/61885/how-to-unmount-a-formerly-chrootd-filesystem
I use the following command to ...
- 393
0
votes
1
answer
73
views
Bash script not launching correctly
Right now I am working on a project for which there is a custom conda environment. I created the environment and the project works, so I created a bash script to activate the conda environment, launch ...
