A bash script to easily capture memory usage on a linux machine.

track_memory.sh

#   Usage: 
#   ./track_memory.sh 100
#   Which will record the memory usage (in Mb) for 100 seconds

#!/bin/bash
x=1
free -h| grep free > memory.txt
while [ $x -le $1 ]
do
  free -m | grep Mem:  >> memory.txt
  echo "$x seconds of tracking memory"
  x=$(( $x + 1 ))
  sleep 1
done