All Questions
Tagged with zsh shell-script
30
questions
1
vote
0
answers
85
views
Zsh handling of substring changed?
I have over a thousand directories holding MP3 files and text. I work on one directory each day, assisted by zsh scripts. I mostly use zsh on command line and in scripts. The paths are in the form ...
- 824
3
votes
0
answers
242
views
Is there a good way to write a shell script compatible with both bash and zsh that addresses array elements?
The fact that bash is 0-indexed and zsh is 1-indexed can cause problems. For example the following will work as intended with bash, but not zsh (PS I am aware that I don't NEED to use an array for ...
- 328
0
votes
1
answer
73
views
zsh on MacOS catalina 10.15.17
I'm having a little trouble putting this all together...
I want to make a simple shell script to organize and sort around 60 GB worth of music and movie files that are spread out over 3 or for 4 ...
1
vote
0
answers
293
views
Source multiple files in background/parallel (ZSH)
For various reasons I would like to be able to source a series of files in background and wait for them all to finish:
source ./my_file_1.sh &
source ./my_file_2.sh &
...
# etc
wait
But, ...
- 111
1
vote
2
answers
2k
views
Change the default location of zsh completion cache files for macOS
I'm trying to change the default location of the zsh completion cache files in macOS. I have read the zsh documentation on completion which say's "alternatively, an explicit file name can be ...
- 27
1
vote
0
answers
54
views
$RANDOM, not so random [duplicate]
I want to print out a random number and encrypt it, like so: echo $RANDOM | sha256sum.
I would expect this to take the standard output of echo $RANDOM and pipe it into the encryption function. However ...
- 25
4
votes
1
answer
3k
views
How to always execute a command when a shell script function finishes?
I need to write a zsh function with multiple exit points and execute the same clean-up command at every one of them:
function foo {
if ... ; then
...
run_cleanup
return
...
- 3,173
1
vote
2
answers
2k
views
Issue with running a shell script without using 'sh' on macOS Monterey
I'm new to shell scripting and generally the usage of Terminal.
I recently made a script.sh that I want to use by just typing its name without the full path.
So, I wrote the path of the directory into ...
- 13
0
votes
1
answer
153
views
How to access highlighted text with pbcopy?
How can I "catch" text that has been selected (highlighted) via shell script? It was suggested to use pbcopy. The script would be idle in the background and when a certain key combination is pressed ...
- 134
6
votes
1
answer
5k
views
How or where to define global functions to be used in bash, zsh, sh scripts?
Say I have these three script files: (all 3 are executable)
bash-test.sh:
#!/bin/bash
HelloFromBash RocketNuts
zsh-test.sh:
#!/bin/zsh
HelloFromZsh RocketNuts
sh-test.sh:
#!/bin/sh
HelloFromSh ...
- 1,172
3
votes
1
answer
2k
views
Running functions that were declared outside my shell script
Currently my ZSH has some sourced functions, for instance:
% declare -f
... a lot of shell functions appears here.
I'm currently writing a shell script that will call a specific function from ...
- 43
2
votes
1
answer
3k
views
execute function in different shell
I usually zsh. I want to execute a function in bash and return back to my original shell. I can do this manually, but I want to automate it. How can I do that?
For example, I am on zsh.
I want to ...
- 450
0
votes
1
answer
456
views
Running nano from function in config file (function in zshrc) does not save changes
I am using zsh as my shell and I am trying to achieve this:
In my .zshrc file I want to have a function that modifies my .zshrc, saves it and reloads it.
So far I have to functions (in my .zshrc ...
- 101
8
votes
2
answers
18k
views
Using arrays in ZSH
I have the following statement:
TOKENARRAY=($TOKEN)
$TOKEN is a numeric variable.
If I try this:
echo ${TOKENARRAY[0]}
it shows me an empty string.
If I do:
echo ${TOKENARRAY:0}
it shows me ...
- 1,297
7
votes
1
answer
2k
views
tmux - get pwd of another pane in a bash script?
Is there anyway to find out information about the current working directory of any pane from within a tmux session?
I'd like to write a bash script that changes the directory of the current pane to ...
- 3,066
0
votes
1
answer
1k
views
How to determine if a screen is running jobs without attaching to it?
I wrote a zsh script that launches many screen sessions and runs a different command in each of them. When the script is executed there are 72 screens in total, so checking if a job is finished or not ...
- 151
2
votes
4
answers
1k
views
How to merge ls commands colors with the output of find or du?
I have a simple alias to list the size of files&folders in cwd.
( including dotfiles in this case , ignoring zero sizes )
du -sh .[!.]* * | sort -hr | grep -v '^0'
which can be achieved aswell ...
- 299
1
vote
2
answers
635
views
tar backup zsh script
Trying to set up a cronjob ran tar script to backup site (without .git and setup folder) every night and upload time stamped archive to Dropbox.
It gives me a hard time as archive is created along ...
- 117
4
votes
1
answer
3k
views
Script-specific autocomplete in shell
I create a lot of little scripts to help me in my every day life.
I would like to provide auto-complete for them, specially that I intend to share them with people.
Now, I know I can create auto-...
- 205
23
votes
2
answers
9k
views
Writing shell scripts that will run on any shell (using multiple shebang lines?)
I've just started getting deeper into shell scripting, and I've always just thrown my script in a file, marked it chmod +x and then done /path/to/script.sh and let whatever interpreter is the default ...
- 365
5
votes
2
answers
6k
views
Efficient way to use all cores in bash or zsh script
If I want to process large number of files with command "do_something" which only can use one core, what's the best way to use all available cores assuming each file can be processed independently?
...
- 345
0
votes
1
answer
442
views
zsh expansion modifiers in scripts
I've just found out that ZSH's modifiers only work in interactive scripts, so the following will work correctly on the command line but not from a script (the script ignores the modifier and echoes ...
- 317
2
votes
1
answer
7k
views
Deleting a file if it exists or not
Here is a part of my zshrc file.
## Most Frequently used settings
# ls
alias ls='rm .DS_Store; echo --------------${PWD##*/}--------------; ls -1FGu'
alias l='ls -A'
I want to delete .DS_Store, ...
- 659
2
votes
1
answer
8k
views
Creating a link for all files in a directory to home
I am trying to write a small zsh (bash compatible) script to take each file in ~/.oh-my-zsh/links directory and creates a hard link for it in ~. I am not sure how to do this. Would this be correct?
...
- 659
0
votes
3
answers
1k
views
High performance perforce sync
I am trying to do p4 sync folder/...
It's not very fast and it's using only 2% of the CPU. I am not happy with the performance.
I am trying to write a function in bash, given a parameter n, it forms ...
- 659
0
votes
1
answer
153
views
Diff between files in different directories
I have the follow directory structure
./goodboys/a.txt
./goodboys/b.txt
./badboys/a.txt.boy
./badboys/b.txt.boy
I am using zsh. I want to diff all *.txt in goodboys with *.txt.boy in badboys.
I am ...
- 659
5
votes
2
answers
2k
views
How to search *upwards* for file? (reverse find)
I'd like to search "upwards" for a file in shell script, e.g. check $PWD, then $PWD/.., then $PWD/../.., etc. until hitting the root. Before I go and roll my own, is there some builtin bash/zsh/find ...
- 230
1
vote
1
answer
1k
views
Under zsh, looking to use `tr` to search and replace a single character with multiple characters
I want to replace "Blah: whatever" or "Blah/Whatever" with "Blah--Whatever"
I have this:
NEW=`echo ${OLD} | tr '[:/]' '--'`
echo ${NEW}
I suppose it's taking the 2 dash characters to mean 1 letter ...
- 5,948
3
votes
4
answers
3k
views
Loop: Start program and kill after time out
for debugging reasons I want to spot one of those bugs showing up just occasionally. Therefore I want to code a while loop in the shell
starting the program (if it will segfault => that's what I want)...
- 2,653
2
votes
2
answers
2k
views
On OS X, how do I start Cocoa emacs *and* bring it to front?
I wrote a little zsh function to allow me to run emacs from the command-line:
function emacs() {
/Applications/Emacs.app/Contents/MacOS/Emacs $@ &
}
This works perfectly, but it seems to ...
- 8,672