All Questions
11
questions
1
vote
1
answer
181
views
Run `git commit -m` with single quotes in zsh
I sometimes use characters such as ! and $ in commit messages, they need to be manually escaped, but not if you use single quotes like this git commit -m 'My $message here!'. I tried to write a ...
- 13
7
votes
2
answers
1k
views
Echoing "!" inside a string does some weird things [duplicate]
If I type in this:
echo "Hello, World!"
I don't know the name of it, but it prompts me for the next line. You know the PS2 thing. Or if you type echo \ and press Enter.
Why?
Well I know ...
- 1,034
1
vote
2
answers
342
views
Please explain the behavior of these parameter expansions using IFS?
I'm trying to figure out how to use the ${parameter%word} expansion with $@ and $*. It started by trying to make a script to combine pdfs using ghostscript, but I ran into some weird behavior with ...
- 53
73
votes
1
answer
13k
views
What is the difference between the "...", '...', $'...', and $"..." quotes in the shell?
Sometimes I see shell scripts use all of these different ways of quoting some text: "...", '...', $'...', and $"...". Why are there so many different kinds of quote being used?
Do ...
- 77.2k
6
votes
3
answers
7k
views
shell: Quote string with single quotes rather than backslashes
How can I quote a string with single quotes?
Eg, I can do:
$ printf "%q\n" 'two words'
two\ words
$
Is there a way to get a single- (or double-) quoted string as output, ie:
$ MAGIC 'two words'
'...
- 31.3k
16
votes
3
answers
9k
views
Loop over a string in zsh and Bash
I would like to convert this Bash loop:
x="one two three"
for i in ${x}
do
echo ${i}
done
in such a way to work with both Bash and zsh
This solution works:
x=( one two three )
for i in ${x[@...
- 1,463
10
votes
4
answers
4k
views
Why does cut fail with bash and not zsh?
I create a file with tab-delimited fields.
echo foo$'\t'bar$'\t'baz$'\n'foo$'\t'bar$'\t'baz > input
I have the following script named zsh.sh
#!/usr/bin/env zsh
while read line; do
<<<$...
- 20.1k
18
votes
1
answer
5k
views
Why does this ffmpeg command work in bash and not zsh?
Today I got home from work (run bash on an Ubuntu box) and tried to run some code on my local arch box with my beloved zsh and the commands were failing?
The command is below with the personal info ...
- 1,378
4
votes
1
answer
1k
views
Problem with passing parameters containing spaces and wild card characters
I have a problem passing parameters if the parameters may contain wildcards and/or spaces, if those parameters are optional. Since this sounds pretty abstract, let's have a small example: The ...
- 697
13
votes
3
answers
30k
views
Treatment of backslashes across shells
How do echo and printf treat backslashes in zsh, bash and other shells?
Under zsh I get the following behavior:
$ echo "foo\bar\baz"
foaaz
$ echo "foo\\bar\\baz"
foaaz
$ echo 'foo\...
- 41.6k
181
votes
1
answer
78k
views
When is double-quoting necessary?
The old advice used to be to double-quote any expression involving a $VARIABLE, at least if one wanted it to be interpreted by the shell as one single item, otherwise, any spaces in the content of $...
- 15.7k