Store comma key = value pair in string before $ key, variable $ value in wrapper
In my bash shell script, I have a comma, a pair of values as one line. How to parse and store each key and value in separate variables.
For example, string1="key1=value1,key2=value2"
I want to convert this, echo 'key1 = value1' >> key1.txt
echo 'key2 = value2' >> key2.txt
<br / "> The number of key pairs, values in line1 will be dynamic. How do I do this in a shell script?
I used cut to get the key and value. But I'm not sure how a loop consisting of a number pairs per line.
string1='key1=value1'
KEY=$(echo $string1 | cut -f1 -d=)
VALUE=$(echo $string1 | cut -f2 -d=)
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#!/bin/bash
string1="key1=value1,key2=value2"
while read -d, -r pair; do
IFS='=' read -r key val <<<"$pair"
echo "$key = $val"
done <<<"$string1,"
Note the trailing ,
in "$string1,"
, which ensures that it read
also enters the loop body while
with the last- ,
segmented token.
gives:
key1 = value1
key2 = value2
To write key-value pairs for sequentially numbered files ( key<n>.txt
starting with 1
):
#!/bin/bash
string1="key1=value1,key2=value2"
i=0
while read -d, -r pair; do
IFS='=' read -r key val <<<"$pair"
echo "$key = $val" > "key$((++i)).txt"
done <<<"$string1,"
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