root-tools/swapoff-progress

   1 #!/bin/bash
   2
   3 set -u
   4
   5 swapdevice=$1
   6
   7 swapon -s | grep -qw "$swapdevice" && swapoff "$swapdevice" &
   8 pid=$!
   9 while [ -d /proc/$pid ]; do
  10         swapon -s | grep -w ^"$swapdevice"
  11         sleep 1
  12 done | \
  13 awk '{printf "\r\e[K%.2f%%", $4*100/$3}'
  14 echo
  15
  16 if [ "${swapdevice:0:9}" = /dev/zram ]; then
  17         modprobe -i -r zram
  18 fi
  19