Utility to validate, pretty-print and syntax highlight JSON data

jsonvi.sh

#!/bin/bash

#
# Utility to display JSON data in a pretty-printed, syntax highlighted form.
# If the data is not valid JSON, an error will be reported.
#
# An optional filename can be specified, otherwise input is read from stdin.
#

set -o pipefail
JSON=$(cat ${1:-/dev/stdin} | python -mjson.tool)
if [ $? -eq 0 ]; then
    vi -R -c "set syntax=javascript" -c "set bg=dark" - <<< "${JSON}"
fi