All Questions
1,205 questions
1
vote
1
answer
60
views
Case-insensitive pattern replacement in Zsh parameter expansion
Please look at this pattern replacement in parameter expansion:
% zsh -c 'echo ${0/%.jpg/.jpeg}' toto.jpg
toto.jpeg
Replacement does not occur here:
% zsh -c 'echo ${0/%.jpg/.jpeg}' toto.JPG
toto.JPG
...
- 209
4
votes
3
answers
524
views
In Grep, how can I `grep -r --exclude build/lib/**/*.py`
I setup a directory structure as follows:
mkdir -p /tmp/test/build/lib/aaa/
cd /tmp/test
mkdir rar
echo "Hello" > foo.py
echo "Hello" > bar.py
echo "Hello" > ...
- 41
3
votes
3
answers
882
views
I need a standard way of expressing as a wildcard expression a set of subdirectories of a top level directory all with the same name
I don't know if such a standard exists, but I thought I'd ask the question.
Is there a way to express the following as a wildcard expression:
all subdirectories named 'process'
residing under a top ...
- 539
0
votes
0
answers
31
views
Wildcard not expanding. sudo to blame? [duplicate]
RHEL 8.
$ alias suip
alias suip='sudo -iu postgres'
If I specify the complete filename, the ls command works as expected:
suip ls ~postgres/logs/pgbackrest_2025-04-30_01:00:01_incr.log
/var/lib/...
- 1,473
2
votes
2
answers
156
views
How does `*\ *` work in bash?
There is an answer from SuperUser, which renames filenames containing whitespace:
for f in *\ *; do mv "$f" "${f// /_}"; done
The part I don't understand is *\ *.
The author wrote ...
- 491
9
votes
1
answer
672
views
Why does bash give the following result after brace expansion?
I am using linux and the following version of the bash:
GNU bash, version 5.1.16(1)-release (x86_64-pc-linux-gnu)
When I type:
echo file{[1,2],3}.txt
I expect brace expansion to be done first, so:
...
- 517
0
votes
2
answers
158
views
variable assignment doesn't create one same object at least for grep
The problem is as follows (Here I don't use find since it doesn't support double-asterisk wildcard **):
$ FILES=(foo/**/*.suffix bar/**/*.suffix2)
$ grep baz "${FILES[@]}" # works
# I use ...
- 173
4
votes
1
answer
141
views
Bash extglob with ignored pattern
Suppose I have these files:
foo/bar/baz/test.js
foo/bar/baz/test.min.js
If I run:
shopt -s globstar
shopt -s extglob
echo foo/bar/**/*!(.min).js
...that will nonetheless match the test.min.js file.
...
- 2,005
0
votes
0
answers
47
views
Trying to unrar specific files within a specific directory
I have a bash script that extracts files from a .rar file. I want to extract only *.foo and mydirectory/*.bar. I followed Unrar specific files using wildcards to get at the first group of files, but ...
- 121
0
votes
1
answer
146
views
What wildcards will work with Make's .INTERMEDIATE target?
Isn't there some wildcard I can use for Make's .INTERMEDIATE target?
$ cat Makefile
.INTERMEDIATE: *.csv %.csv #failed
.INTERMEDIATE: north.csv g.csv #worked
Or must I list each and every file each ...
- 570
3
votes
2
answers
204
views
zsh completion - ignore executable files with no dot in the name
I am trying to ignore files that are executable and have no dot in them, because when I am coding in C I don't want to open the binary executable files with neovim. Here is what I am trying to achieve:...
- 1,154
-2
votes
4
answers
113
views
gnu grep multiple filters in one regex [closed]
RHEL 8, if it matters.
I need to find all the rows in a text file which match these three filters:
cut -f1 -d: .pgpass | grep ^FISP | grep -E 'CDS|TAP' | grep PGS401
FISPCDSPGS401A
FISPCDSPGS401B
...
- 1,473
4
votes
4
answers
406
views
BASH - Find file with regex - Non-recursively delete number-only filenames in directory
I'm wanting to non-recursively delete all files in a directory where each filename contains only numbers, using only a single line of BASH.
I somehow accidentally ran a shell script with commented out ...
- 61
3
votes
3
answers
277
views
Find and delete files from unix directory of multiple patterns
I need to delete files from a unix directory having patterns like 'bkp', 'backup', 'bak'.
Basically I want to delete all the backup files.
Files in the directory:
A001.txt_bkp
A001.txt
A002.csv_backup
...
- 41
3
votes
2
answers
165
views
Zsh: Copy or Move symlinks to regular files, but not symlinks to directories (or vice versa)
In Zsh,
to copy regular files, I can use cp source-dir/*(.) dest-dir/
to copy directories: cp source-dir/*(/) dest-dir/
to copy everything else, e.g., symlinks, pipes, and devices:
cp source-dir/*(^./...
- 1,357