zram-swap: init: replace backticks with $()

This replaces deprecated backticks by more versatile $(...) syntax.

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
[add commit description]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit is contained in:
Rui Salvaterra 2020-06-30 17:23:12 +01:00 committed by Adrian Schmutzler
parent 69ca308673
commit 835c932ccb

View File

@ -73,7 +73,7 @@ zram_getdev()
local zdev=$( zram_dev )
if [ "$(mount | grep $zdev)" ]; then
local idx=`cat /sys/class/zram-control/hot_add`
local idx=$(cat /sys/class/zram-control/hot_add)
zdev="$( zram_dev $idx )"
fi
@ -89,7 +89,7 @@ zram_comp_algo()
return 0
fi
if [ `grep -c "$zram_comp_algo" /sys/block/$( basename $dev )/comp_algorithm` -ne 0 ]; then
if [ $(grep -c "$zram_comp_algo" /sys/block/$( basename $dev )/comp_algorithm) -ne 0 ]; then
logger -s -t zram_comp_algo -p daemon.debug "Set compression algorithm '$zram_comp_algo' for zram '$dev'"
echo $zram_comp_algo > "/sys/block/$( basename $dev )/comp_algorithm"
else
@ -147,8 +147,8 @@ zram_compact()
# compact zram device (reduce memory allocation overhead)
local zdev="/sys/block/$( basename "$1" )"
local old_mem_used=`awk '{print $3}' <$zdev/mm_stat`
local old_overhead=`awk '{print $3-$2}' <$zdev/mm_stat`
local old_mem_used=$(awk '{print $3}' <$zdev/mm_stat)
local old_overhead=$(awk '{print $3-$2}' <$zdev/mm_stat)
echo 1 > $zdev/compact