Questions tagged [quoting]
The use of quotation marks (typically, `'` or `"`) to mark tokens as string literals or strings subject to interpolation, or to treat multiple whitespace-separated tokens as a single unit.
quoting
604
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how to expand a string in bash so that it evaluates to a pipeline [duplicate]
Suppose I have the following variable in a bash script cmd='echo hi | wc'.
Since I forgot how many characters are in the string "hi", I want to run cmd.
I expected this be as simple as ...
- 1,623
1
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1
answer
60
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How can I fix conflicting symbols between git and powershell?
When I’m specifying gitrevisions in pwsh (eg HEAD@{3}), I have to conditionally remember to surround the gitrevision with quotes. If I don’t, it treats “@“ as an array sub-expression operator.
Example:...
- 13
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2
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92
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zsh brace expansion for argument containing spaces supplied from a variable
In zsh, how can I use brace expansion for an argument containing spaces supplied from a variable?
e.g., I want to rename a file from ~/a b/1.txt to ~/a b/2.txt.
I can do this manually from the command ...
- 4,349
2
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2
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66
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How to pass PowerShell string parameter that has both `(backtick), ' and " inside?
I am executing a Python script using a PowerShell command, The Python script takes a string that could contain special characters inside it. This parameter is passed from an ansible pipeline. The ...
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1
answer
32
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cant put substraction character as string
I am trying to write a bash script to create a filename using some variables, I should add "-" character in some places to obtain the correct filepath. However when I use the following ...
- 21
0
votes
1
answer
21
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Invoking command with arguments from variable
I have a list of arguments, some which contain spaces, stored in a variable. When the command is invoked the arguments are not interpreted correctly. Here is a minimal example which illustrates the ...
- 11.1k
2
votes
1
answer
40
views
Remove auto single quotes in GNU Parallel
I'm running this command, to change "Text to replace" in text files with the basename the text file:
parallel --dry-run sed -i \"s/Text to replace/{.}/\" {} ::: *.txt
However, ...
- 5,364
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117
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How do I make chroot run a command in the same directory in the new rootfs as I am in now?
I have various other Linux distros on other partitions and am trying to write a command called "on" that will run a shell command in that distro as the same user and in the same directory as ...
- 950
2
votes
2
answers
111
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Variable substitution inside if statement
I have the following bash script that I do not have control over:
set -x
echo "$CMD"
if ${CMD}; then
echo "Success"
fi
I'm trying to run the following command: bash -c "...
- 883
0
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251
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Passing go -ldflags as an argument to Dockerfile
I have a Dockerfile where I'm building the image from go source and I need to pass the -ldflags as an argument to the go build command. Below is a snippet of the Dockerfile:
// from statement and ...
- 579
1
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1
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81
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Powershell: how escape many special chars as data, not operators?
Got a problem understanding how to escape out chars in PS, so they are not interpreted as operators or instructions. I'm writing a PS script to find chars in filenames which are to be forbidden, and ...
- 33
1
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1
answer
41
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Cannot handle properly csv.writer escapechar and quoting parameters
I am developing a python script which,
given:
the path of a csv file
a list of names of some of the columns of the csv file
a string to-be-replaced (A)
a string to-replace-with (B)
should:
...
- 3,921
9
votes
2
answers
12k
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Python3.12 SyntaxWarning on triplequoted string `\d` must be `\\d`
After updating to Python 3.12, I get warnings about
invalid escape sequence on some triple-quotes comments.
Is this a new restriction? I have the habit of documenting code using triple-quoted string, ...
- 3,222
1
vote
1
answer
36
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csv writer in python adding double quote when copying data from another csv file, So I just need to know how to copy exactly the same data
#Reading from csv file
with open('py_csv/oscar_age_male.csv','r') as csv_file:
csv_reader=csv.reader(csv_file)
#Creating new file and opening it and changing delimiter
with open('py_csv/...
0
votes
1
answer
51
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macOS bash globbing quoted variable unexpectedly [duplicate]
On Linux with bash 5.2.15, single quotes prevent globbing as expected:
Good
$ dir='/path?/to?/file?'; echo $dir
/path?/to?/file?
$
However, on macOS with bash 3.2.57, I get this undesirable behavior:
...
- 23