'sed replace backslash double quote with single quote

I would like to take the following:

echo "'{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'"

And end up with the following via using SED:

{'apiVersion':'apps/v1', 'kind':'two'}
bashsed


Solution 1:[1]

Using Bash's string replace:

#!/usr/bin/env bash

a='{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'

# Replaces all occurrences of \" with '
b=${a//\\\"/\'}

# Debug prints converted string
printf '%s\n' "$b"

Solution 2:[2]

echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'| tr -d '\\'|tr '"' "'"
echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'| sed "s/.\"/'/g"
echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'| awk '{gsub(/\\"/, "\047"); print}'

{'apiVersion':'apps/v1', 'kind':'two'}

update (new string)

echo "'{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'"| tr -d "'"|tr '"' "'"
echo "'{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'"| sed "s/'//g; s/\"/'/g"
echo "'{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}'"| awk '{gsub(/\047/, ""); gsub(/"/, "\047"); print}'

{'apiVersion':'apps/v1', 'kind':'two'}
{'apiVersion':'apps/v1', 'kind':'two'}
{'apiVersion':'apps/v1', 'kind':'two'}

Solution 3:[3]

UPDATE 1 : if you insist on sed, then it's :

   echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' |
   
    sed -E 's/\\["]/\x27/g'   
                            # BSD-sed

{'apiVersion':'apps/v1', 'kind':'two'}

   echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' |
   
   gsed -E 's/\\["]/\x27/g'   
                            # GNU-sed
{'apiVersion':'apps/v1', 'kind':'two'}

===============================

UPDATE 2 : if you're not comfortable dealing with octal codes in awk, then it's

gawk -e 'NF++~—-NF' FS='\\\\"' OFS="'" 

{'apiVersion':'apps/v1', 'kind':'two'}

===============================

A relatively portable awk-based solution

echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' | 
gawk      NF=NF FS='\\\\\42' OFS='\47'

{'apiVersion':'apps/v1', 'kind':'two'}

echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' | 
gawk -Pe  NF=NF FS='\\\\\42' OFS='\47'

{'apiVersion':'apps/v1', 'kind':'two'}

echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' | 
gawk -ce  NF=NF FS='\\\\\42' OFS='\47'

{'apiVersion':'apps/v1', 'kind':'two'}

echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' |
mawk      NF=NF FS='\\\\\42' OFS='\47'

{'apiVersion':'apps/v1', 'kind':'two'}

echo '{\"apiVersion\":\"apps/v1\", \"kind\":\"two\"}' | 
mawk2     NF=NF FS='\\\\\42' OFS='\47'

{'apiVersion':'apps/v1', 'kind':'two'}

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Léa Gris
Solution 2
Solution 3

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