Questions tagged [shell-script]
Questions about shell scripts, executable files that are interpreted by a shell (bash, zsh, etc.).
16,481
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variable with hyphen in bash script
db1="community-service-data"
db2="ecomm-data-test"
drop_db="DROP DATABASE ${db1}"
sudo -u postgres -S /bin/bash -c "psql -U postgres -d postgres -c \"${drop_db}...
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2
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30
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Bash script to compress nested directories not traversing correctly
I have a folder structure that looks like this:
0/1/2 and the numbers goes from {0..9}
I tried writing a bash shell script so that I can compress each of the folders like this:
#!/bin/bash
for i in {0....
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1
answer
40
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Command not found on shell opening
Every time I open the shell, the first line on the terminal is "bash: n: command not found". I tried to look at /etc/profile, ~/.bashrc, ~/.profile and ~/.bash_profile but I was not able to ...
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Evaluate command inside comparison in makefile [duplicate]
I would like to check if Linux system is ubuntu inside Makefile. What I do is:
copy_files:
if [ "$(head -n 1 /etc/lsb-release | cut -d '=' -f2)" = "Ubuntu" ]; then \
...
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1
answer
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Why does redirecting stderr interfere with bash's handling of $COLUMNS and the `checkwinsize` option?
I'm scripting a testing framework in bash and am running into a weird situation.
A couple things I'm doing in this post for illustration purposes:
Adding echo lines to the scripts; these are not part ...
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1
vote
2
answers
186
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find with du -sch and very many files
I have large folder structure and need to get the size of a certain subset. The directories I need to count are defined by having specific subdirectories:
find . \( -iname a -or ... \) -printf "\&...
- 277
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0
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Setting variable (ORACLE_BASE) for oracle user | Installing Oracle 23
Goal: Install Oracle 23 into /u00/app (and not the default, /opt/oracle).
Problem: Oracle installs into /opt/oracle (I assume the variable ORACLE_BASE etc. is not properly set / read for user oracle ...
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3
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51
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xsel like a clipboard manager: keep clipboard content for future use
I'd like to run xsel as background process to keep clipboard content for future use. I run it in openbox startup script like that:
xsel -b -k
But when I select something with Ctrl-C and close ...
3
votes
2
answers
294
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Remove duplicates in file (without sorting!) leaving the _last_ of the occurences
Following https://www.baeldung.com/linux/history-remove-avoid-duplicates, I
added
clean_history() {
awk '!a[$0]++' $HOME/.bash_history > $HOME/.bash_history.tmp && mv $HOME/....
- 697
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5
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107
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To check whether first or last character of a string is x
I am trying to check whether the first or the last character of a string is x using zsh, and I get an error message instead:
./test.sh:2: bad substitution
What is the problem here?
string="2x3&...
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1
vote
1
answer
56
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Grep return No such File, after comand substituion
I'm trying to use grep in a Bash script and assign the result to a variable:
RESUlT=$(grep -R -I --exclude-dir=addons "^[^#]*print(" )
But it returns
bash: Map/Places/place.gd:: No such ...
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-1
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2
answers
171
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Is it possible to translate bash to another human language like Arabic?
Bash commands are written in the Latin alphabet, is it possible to translate them to another language? In this case, Arabic. Arabic is written rtl and I remember I tried it using alias before when I ...
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1
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How to make '.zshrc' to search for sourced files in the specific folder and not in the folder from which the terminal has been opened
macOS 14.5, Zsh 5.9.
ls -A -- ~/:
.zshrc
system-wide-clipboard.zsh
cat -- ~/.zshrc:
autoload -Uz zmv
alias zcp='zmv -C'
alias zln='zmv -L'
. ./system-wide-clipboard.zsh
If I open the Terminal ...
- 69
-1
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1
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Sourcing a shell script vs. Passing it as an argument to a shell interpreter [duplicate]
I'm new in shell scripting. As I discovered today, there are at least three ways to run a shell script:
To execute it, using the absolute or a relative path:
/folder1/folder2/script.sh
./script.sh
...
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2
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In bash/zsh, how to compare the metadata in two directories including . and excluding .. and the contents inside subdirectories?
Let's say that in a script, you have a directory $1 and its copy $2 and you'd like to compare the metadata (names, permissions, sizes, full modification dates, …) of the files and directories inside ...
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