Answers for "find the length of an array arr in shell script"

5

get length of array bash

## define it
distro=("redhat" "debian" "gentoo")
 
## get length of $distro array
len=${#distro[@]}
 
## Use bash for loop 
for (( i=0; i<$len; i++ )); do echo "${distro[$i]}" ; done
Posted by: Guest on June-27-2020
1

bash length of array

# Basic syntax:
YOUR_VAR=( $YOUR_VAR ) # convert the string to an array
echo ${#YOUR_VAR[*]} # use the standard bash syntax to get the length of arrays

# Example usage:
YOUR_VAR='some string with words'
YOUR_VAR=( $YOUR_VAR )
echo ${#YOUR_VAR[*]}
--> 4

# Note, to convert the array back to a string, use:
YOUR_VAR="${YOUR_VAR[*]}"
Posted by: Guest on February-24-2022

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