Questions tagged [sh]
/bin/sh is the POSIX shell. For questions where portability is important. If the question is about .sh files, tag it with `scripts` instead. On Ubuntu the POSIX shell is symlink to `/bin/dash`, and [dash-shell] is therefore related to [sh] tag, and both may be used when tagging questions.
197
questions
2
votes
2answers
38 views
Lubuntu 20.04 cannot execute .sh script from PCManFM-Qt
Lubuntu 20.04. I've created a simple .sh script to run my Java program, so content of .sh is:
java -jar /path_to_my/test.jar
I marked this script as executable, and when double-clicking on it in the ...
0
votes
0answers
54 views
How to fix “set -e -o pipefail” (CentOS script) for Ubuntu 18.04 LTS?
I'm working with a set of scripts that automate some bioinformatics (mitoVGP; https://github.com/VGP/vgp-assembly/tree/master/mitoVGP) and then the install is done as a conda environment.
The problem (...
0
votes
2answers
101 views
Is Bash a language or a program? [closed]
I've seen it listed as a scripting language and other sources state that its just a program that runs predefined scripts in the bin whatever folder. So my question is are the bash commands on every ...
1
vote
1answer
62 views
How can I do command substitution in a .desktop file?
Can I do bash-like command substitution in a .desktop launcher? For example, something analogous to this:
Exec=/some/prog --arg "$(zenity --entry)"
By that I mean "run this command and ...
0
votes
0answers
237 views
Syntax error unexpected (
I keep trying to launch this vim sh file but i keep getting the error message Syntex error: unexpected "("
#!/bin/bash
openssl req -x509 -out pop1001234.cert -keyout pop1001234.key \
-...
0
votes
1answer
74 views
Run command one after the other from bash script
I'm trying to run some commands one after the other, but I think I'm making some mistake since only the first command is being run.
I have a bash script that is like:
#!/bin/bash
sudo su && ...
0
votes
0answers
30 views
Assign shortcut key ALT+TAB to run a script in Kubuntu (from Ubunto)
I've written a script (rofi.sh) to run
rofi -show window (apt install rofi)
The test of the script (rofi.sh) works as expected.
I want run this script, just by pressing
Alt+TAB
I tried to add it in ...
0
votes
0answers
47 views
Why does $BASH_VERSION works and don't work depending on how I echo it?
I am in a sh terminal.
When I do this
echo $BASH_VERSION
I get the version printed.
However when I do this
echo "`$SHELL -c 'echo $BASH_VERSION'`"
I got nothing.
I am not an expert on ...
0
votes
1answer
2k views
How to run multiple commands in multiple terminals using single shell script command
I have tried to write a shell script to run multiple commands in multiple terminals, but I can't able to run the commands, I can only able to open the multiple terminals.
This is written in a shell ...
0
votes
0answers
201 views
Ubuntu20: nothing happens when I try to run Anaconda install script
I have downloaded the current version of Anaconda to my Downloads folder. In Terminal I CD’d to the folder and tried
bash Anaconda3-2020.07-Linux-x86_64.sh
Nothing happens except that a fresh prompt ...
0
votes
1answer
40 views
script file command not found
I have a simple script file first.sh as shown below:
#!/bin/bash
echo "hello";
a = "test";
echo "$a"
when I execute it, it occurs an error as written below:
./first.sh: ...
0
votes
0answers
1k views
sh: 0: Can't open
I am trying to run this command
sh bbmap/bbduk.sh in1=fastq/Brca1Reads_ALL.1.fastq out1=fastq/Brca1Reads_ALL.1.TRIMMED.fastq ref=bbmap/resources/adapters.fa
On terminal, but I keep getting:
sh: 0: ...
0
votes
0answers
52 views
Ubuntu 19.10 is not starting, [FAILED] messages on boot
I was using Firefox and terminal; there I was converting a python file to APK with buildozer after I found that .sh files are not available so I ran several commands and my laptop hung.
I was not able ...
0
votes
0answers
52 views
there is another way to change multiple resolutions in linux without wait to the login
I have already make a script doing this and i put it in the start app applications, but these commands only start when you login, there is a another way to do it when the computer turn on, or ...
0
votes
3answers
608 views
Shell script to create a folder with files name and copy files inside
I have a list that looks like this
ABC_100.0_k_1x1x1.xyz
ABC_100.0_k_1x1x1.txt
ABC_100.0_k_2x2x2.xyz
ABC_100.0_k_2x2x2.txt
ABC_100.0_k_10x10x10.xyz
ABC_100.0_k_10x10x10.txt
ABC_600.0_k_1x1x1.xyz
...
0
votes
1answer
39 views
Executing cut command on ASCII text
I have a text file written in the following way :
/home/walter197/file_created.txt
/home/walter197/myfile1
/home/walter197/new.txt
/home/walter197/sdl.tar.gz
/home/walter197/sys_info.html
/home/...
0
votes
1answer
75 views
Make an 'if else' statement in bash which toggles key repeat
#!/bin/bash
var1="r on"
var2="r off"
xset=$xset
if [[ $(xset r on) = true ]] then
$xset "$var1"
else
$xset "$var2"
fi
is the script which I tried to run to toggle the key repeat.
When running ...
0
votes
1answer
40 views
Trying to create a .dekstop file for an .sh
I'm trying to create a .desktop file that runs an sh file that reboots my system in Windows 10.
It goes like this:
[Desktop Entry]
Name=Windows 10
Comment=Windows 10
Keywords=w10,windows
Exec=sh /...
1
vote
0answers
43 views
How to switch to HDMI audio when HDMI is plugged in?
I am using Ubuntu 18.04. Right now, I am trying to make it so that my computer switches the audio output from my headphones to my projector when it is plugged in, and vice versa. Is there a way I can ...
0
votes
2answers
793 views
Change the default shell to run .sh files
I have a fresh install of Ubuntu 18.04. I am running quite a few installation scripts in .sh files. I noticed that if I simply run ./my_script.sh, they will report [[: not found unless I explicitly ...
7
votes
4answers
13k views
My Ubuntu server has been infected by a virus kdevtmpfsi
My Ubuntu server has been infected by a virus kdevtmpfsi, I have already done serveral steps to solve this problem, like all of these: https://github.com/docker-library/redis/issues/217.
But it is ...
0
votes
1answer
40 views
A puzzel about sh and ./
I have figured that if I want to use./to execute a script, I have to runchmod +x filefirst. But why can I execute it by using sh file without the chmod command? Doesn't sh need any executing ...
0
votes
1answer
173 views
command line input directory read with tab autocomplete doesn't work
I need for user to point out a directory path in command line but when trying to suggest folders with tab it gives me tab spaces
function selectFolder() {
local dir
read -p "Enter the path of ...
0
votes
0answers
203 views
Is it possible to disown a background process and then later open it in another terminal window? [duplicate]
Say you have a script that takes a while to do something, but then later requires some user input e.g. something like:
#!/usr/bin/python -u
import time
x=0
while(x<10):
time.sleep(1)
x+=1
...
0
votes
1answer
419 views
Does anyone have a .sh script to scan recursively the current folder for 0 byte files and place them into text file?
I am looking for a simple .sh script which can scan the current folder and sub folders recursively for 0 byte files. I know this can be done in only a few lines, but I'm quite noobian on the command ...
5
votes
2answers
2k views
sh alternative to bash cp {file,file}
In a script, if I put #!/bin/bash at the top, this will work fine:
cp directory/{foo,bar} destination
However, with sh, this will give the error 'no such file or directory'. In sh, is there another ...
1
vote
1answer
294 views
mkdir inside sh, won't work
I am trying to create directory using mkdir inside sh file, when I do that the directory is created, but then when trying to do something to it, I get the message "rm: cannot remove '/testFolder': No ...
1
vote
0answers
62 views
bash exits immediately after adding kubectl bash completion
bash exits immediately to solve this problem I had press ALT+F2 and then set terminal to sh rather than bash. I ran sh and commented out the section which I added for kubectl bash completion:
source &...
0
votes
1answer
184 views
script not working in cron but works from command line
#!/bin/sh
# Script to start multi-user session of MFG/PRO
# tokens:
# &DLC = Progress Directory
# &CLIENT-DB-CONNECT = command line to connect to each db in dbset
stty intr '^c'
DLC=/apps/...
1
vote
1answer
839 views
“-sh: 2: logout: not found” - message when trying to logout from the server
When I connect to my server:
ssh user@ip.address
I login with a password, and then do:
logout
I get this message "-sh: 2: logout: not found".
Why can't I log out ?
What does this message mean ?...
4
votes
2answers
1k views
CLion doesn't pick up environment variables sourced in bashrc
Long Story (This is X)
TLDR / The Problem (This is Y)
Now, if running sh /opt/clion/bin/clion.sh from the Ubuntu terminal, CLion does pick up the environment variables sourced in the ~/.bashrc file, ...
1
vote
1answer
118 views
How can I test if there are entries in the terminal command history in bash?
I'm still quite new to bash scripting and I need a very simple script that, if there is command history, displays it, and, if there isn't, informs the user that there is no command history.
What I ...
0
votes
1answer
74 views
Traverse through all folders and renaming all files inside folder sequentially 1.*, 2.*, 3.*
This does not work... I am still rather bad with sh scripts.
for imageFolder in *; do
[ -d $imageFolder ] && cd "$imageFolder" &&
for file in *.*
do
...
6
votes
1answer
5k views
Why doesn't auto complete work in my shell?
I am not so into Linux and I have the following doubts: a client provided me an Ubuntu 18.04.3 LTS virtual machine which I access via SSH. (I am using MobaxTerm as SSH client but it should not be the ...
3
votes
1answer
233 views
Ubuntu is asking for sudo password on startup
Since some weeks ago, my Ubuntu 18.04 is asking for root password, saying "sudo password needed to launch /bin/sh".
I skip this prompt but I wonder why this is happening and how can I diseble it?
It'...
1
vote
2answers
302 views
Show locations of duplicate lines across multiple files
I have two files:
#a.txt
11
22
33
44
55
11
And
# b.txt
55
66
77
88
99
11
I do this command to print duplicate lines across two files: sort *.txt | uniq -D
And it outputs:
11
11
11
55
55
I ...
3
votes
3answers
158 views
How do I assign the Output of a command as a Value of a variable?
I have a simple bash script like below :
#!/bin/bash
hname='hostname'
echo Hello, my server name is $hname
But the output is not as I expected. It is as below :
Hello, my server name is ...
1
vote
1answer
2k views
Diagnose 'sh: 1: Bad substitution' from /bin/sh -exc
I've been trying to compile some ocaml packages and keep running into some errors of the form sh: 1: Bad substitution (exit code 2), eg.
/bin/sh -exc echo | m4
/bin/sh: 1: Bad substitution
But, /...
1
vote
0answers
42 views
Autorun script while plugging in a USB device on a USB-media blocked PC
I have about 50 PCs with Ubuntu versions ranging from 12 to 18. All is USB media blocked. I want to copy a folder from my USB to a standard user account. Every time I have to manually acquire root ...
7
votes
2answers
215 views
What does this if-then statement mean?
Playing around in my system, I stumbled upon
~$ echo $XDG_DATA_DIRS
/usr/share/ubuntustudio:/usr/share/xfce4:/usr/local/share:/usr/share:/var/lib/snapd/desktop:/usr/share
Asking myself why /usr/...
1
vote
1answer
95 views
Is it possible to switch shells without getting dumped into the old shell by exit?
For example, let's say I have bash, sh, fish, zsh, pwsh or more installed.
If I start bash, switching into sh leads to the following:
user@device:/folder/directory$ sh
$ exit
user@device:/folder/...
2
votes
1answer
61 views
I need to run xrandr -o normal at startup and keep getting Bad Interpretation error
All I need to run xrandr -o normal at startup and keep getting
Bad Interpretation error - No such file or directory exists.
This is the script I have:
#!bin/bash
xrandr -o normal
I've checked the ...
-1
votes
1answer
39 views
Create an array in data file while the value in a specifc column is constant
I have the follow data set:
M1 1 1233
M2 1 3212
M3 1 55323
M4 1 4444233
M5 1 23444
M6 1 555333
M7 1 55567
M8 2 22224
M9 2 55566
M10 2 4567
M11 3 44242
M12 3 234234
...
14
votes
2answers
3k views
Mistakenly modified `/bin/sh'
I had this script:
spd-say "Hello, don't forget the trash bin."
So it reminded me of what I supposed to do, and I moved it to /usr/local/bin/ and the command trash pronounced the argument,then I set ...
0
votes
4answers
2k views
compare two lines and print unmatched words from two files
I have two files,Lets say file1 and file2
file1 has "eipassoc-03cd9117d7188d2 eipasoc-47367a3f eipasoc-bbbddc3 eipassoc-10bbfb6" each one is space delimited
file2 has "eipasoc-...
3
votes
1answer
773 views
Continue command on a new line
To improve the readability of my code, I want to go to a new line in the code but I do not want the compiler to treat is as a different line of command. How do I do this?
python file_a.py file_b.py
...
0
votes
0answers
29 views
How to run script concatenating outputs to file and running in background?
I have the following script:
#!/usr/bin/env sh
set -x
(
echo "Running command ls -la" && \
cd folder/path && \
ls -la
) $>> some_file 2>&1 &
Pretty much ...
0
votes
1answer
57 views
How to automate screen multiplexer to automatically start on a path and execute a file
I want to automatically:
screen -S Test
cd /home/dapkkins/Servers/Bungee
sh start.sh
^Ad
My sh file to run my server through ssh
1
vote
0answers
217 views
udev script not running, works in test
I'm trying to make a script run automatically when I dock or undock my laptop. I have this simple test script I want to run:
$ cat /usr/local/bin/undock.sh
#!/bin/sh
/usr/bin/touch /tmp/testFile....
-1
votes
1answer
99 views
Moving certain characters from one file to another
Let's say we have text file File1.txt that contains digits and alphabetic characters:
1 2 3 a 4 5
9 2 3 b
1 2 a l a i o l a
9 2 c
Do you know how to write a bash script that takes digits from File1....
