Parsing model log file using bash, grep, head, tail and cat ...

In this script you can find an example of using grep with perl regular expressions, mathematical expressions in bash script, array, head and tail and cut (a simplistic text splitting utility for shell).

	#!/bin/bash
	#set -x
	echo $1
	found=$(fgrep --text "At" $1 | fgrep "User" | fgrep "Time" | fgrep "(sec)")
	#echo "$found"
	echo "-----------------------------------------------------------------------"
	echo "start: " $(echo "$found" | head -1 | cut -f 1 -d"," )
	echo "currently (or finished): " $(echo "$found" | tail -1 | cut -f 1 -d"," )
	echo "-----------------------------------------------------------------------"
	#echo "Current time step is: "
	last_progres_line=$(tail -1000 $1 | fgrep "TIMESTEP" | fgrep "OUT OF" | tail -1)
	#select numbers from a phrase
	groups=$(echo $last_progres_line | grep -Po '\d+')
	i=0
	for y in $groups
	do
	counts[${i}]=$y
	let i=$(( ${i}+1 ))
	done
	total_steps=${counts[1]}
	last_finished_step=${counts[0]}
	nsteps=$( fgrep --text "TIMESTEP" $1 | fgrep "OUT OF" | wc -l)
	echo "Performed ${nsteps} steps"
	steps_todo=$(( ${total_steps} - ${last_finished_step} + 1 ))
	echo "${steps_todo} steps left ..."
	#egrep "At" $1 | egrep "User" | egrep "Time" | egrep "(sec)" | tail -1

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