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Tagged with associative-array zsh
8 questions
1
vote
1
answer
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How to retrieve items from an array of arrays?
Hello StackExchange pros!
I am working on a zsh project for macOS. I used typeset to create three associative arrays to hold values, and a fourth array to reference the individual arrays. Is it ...
- 13
5
votes
2
answers
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Set a key with spaces in an associative array in Zsh
In Bash (4 or above), if I have an associative array dict, I can set its value like dict[apple count]=1 and I would be able to access it with ${dict[apple count]}. Does Zsh allow space in key names? ...
- 1,269
19
votes
1
answer
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How to use associative arrays safely inside arithmetic expressions?
A few Bourne-like shells support associative arrays: ksh93 (since 1993), zsh (since 1998), bash (since 2009), though with some differences in behaviour between the 3.
A common use is for counting ...
- 574k
10
votes
1
answer
2k
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In ZSH, how do I unset an arbitrary associative array element?
An associative array I have has arbitrary keys, including keys containing backquotes, brackets, etc:
$ typeset -A arr
$ key='`'
$ arr[$key]=backquote
$ echo $arr[$key]
backquote
I now need to unset ...
- 834
4
votes
4
answers
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zsh testing existence of a key in an associative array via indirect expansion
So I know that you can test for the existence of a regular parameter via indirect expansion by doing something like:
foo=1
bar=foo
(( ${(P)+bar} )) && print "$bar exists"
And I know you can ...
- 71
2
votes
2
answers
2k
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no matches found when using associative arrays in zsh
I am encountering no matches found when using map in zsh:
#!/bin/zsh
declare -A map=(["8761"]="Eureka服务" ["11001"]="用户微服务")
Why would this happen, and how can I fix it? This is the error:
~/source/...
- 761
10
votes
4
answers
2k
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Inverting an associative array
Let's say I have an associative array in bash,
declare -A hash
hash=(
["foo"]=aa
["bar"]=bb
["baz"]=aa
["quux"]=bb
["wibble"]=cc
["wobble"]=aa
)
where both keys and values are ...
- 351k
1
vote
0
answers
815
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zsh parameter expansion flag (P) with associative arrays
In the zshexpn manual page (zsh version 5.1.1) we have:
Parameter Expansion Flags
(P): This forces the value of the parameter name to be interpreted as a further parameter name, whose value will be ...
- 855