Bash script to display log lines with unixtime to human readable date

santiago

#! /bin/bash

# Display logs files with lines that begin with a 10 digit unixtime to human readable date
# save in /usr/sbin/ and make it executable
#
# Latest version: https://gist.github.com/lgaetz/b06c58aa349bc84348b12fc5d908da11
#
# Usage:
#          cat /etc/asterisk/firewall.log | santiago
#          santiago /var/log/asterisk/queue_log
#
# License: GNU/GPL3+
#
# History
#    2022-02-24  First commit


if [[ -a $1 ]]; then
  cat $1 | awk '{sub(/[0-9]{10}/, strftime("%Y-%m-%d %H:%M:%S", substr($0,0,10)))}1'
else
  awk '{sub(/[0-9]{10}/, strftime("%Y-%m-%d %H:%M:%S", substr($0,0,10)))}1'
fi