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questions
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value of $VAR already contains backtick and/or single quote inside. How to handle it? How to properly pass $VAR to program? [duplicate]
$ bash --version
GNU bash, versione 5.2.26(1)-release (x86_64-pc-linux-gnu)
I don't know how to deal with $VAR when its value inside contains single quote (') and/or backtick (`).
I'm in the need of ...
- 33
0
votes
3
answers
2k
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"bash: !/bin/su": event not found" [duplicate]
I have line in script which is working, but not working from command line.
echo "User ALL = NOPASSWD: ALL, !/bin/su" | sudo tee -a /etc/sudoers
[user@localhost ~]$ echo "test ALL = NOPASSWD: ALL, !/...
- 111
7
votes
3
answers
35k
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How to add a line break inside a bash string? [duplicate]
I have the following bash string and I need to add a line break to it, before the 'Hello' string:
bash -c "echo 'Hello' > /location/file"
I already tried adding it with different variations of ...
user149572
1
vote
2
answers
2k
views
Shell eating `?` characters
This is such a simple question that I'm sure it's been asked somewhere, but I can't find it. My shell, which I have not intentionally set up to do so, seems to eat any words involving question marks:
...
- 113
0
votes
2
answers
3k
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Define string with the characters *, single quote and $
I create bash scripts which get sourced from another "main" script to set up variables needed by the main script. These variables need to be able to contain any character and not have them ...
- 1,613
7
votes
1
answer
3k
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Representing/quoting NUL on the command line
Can \0 be used on the command line?
Background
For testing corner cases in GNU Parallel I was curious whether all characters were correctly quoted on the command line. Most of them are:
perl -e '...
- 35.8k
188
votes
7
answers
179k
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Can't use exclamation mark (!) in bash?
I'm trying to use the curl command to access a http url with a exclamation mark (!) in its path. e.g:
curl -v "http://example.org/!287s87asdjh2/somepath/someresource"
the console replies with bash: ....
- 2,235
10
votes
2
answers
5k
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Difference between ' and " on command line (bash)? [duplicate]
I used to use '' and "" (single and double-quotes) interchangeably on the command line, but I recently noticed that '$HOME/some/dir' is not expanded, while "$HOME/some/dir" is. I searched around a ...
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