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base-files: replace backticks in lib/upgrade/nand.sh

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

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit is contained in:
Adrian Schmutzler 2020-05-10 16:20:55 +02:00
parent 9c170cb92f
commit e49fac097c
1 changed files with 4 additions and 4 deletions
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8
package/base-files/files/lib/upgrade/nand.sh
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@ -231,7 +231,7 @@ nand_upgrade_ubinized() {
# Write the UBIFS image to UBI volume
nand_upgrade_ubifs() {
local rootfs_length=`(cat $1 | wc -c) 2> /dev/null`
local rootfs_length=$( (cat $1 | wc -c) 2> /dev/null)
nand_upgrade_prepare_ubi "$rootfs_length" "ubifs" "0" "0"
@ -249,8 +249,8 @@ nand_upgrade_tar() {
local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
board_dir=${board_dir%/}
local kernel_length=`(tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null`
local rootfs_length=`(tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null`
local kernel_length=$( (tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null)
local rootfs_length=$( (tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null)
local rootfs_type="$(identify_tar "$tar_file" ${board_dir}/root)"
@ -307,7 +307,7 @@ nand_do_upgrade() {
nand_do_platform_check() {
local board_name="$1"
local tar_file="$2"
local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
local control_length=$( (tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null)
local file_type="$(identify $2)"
[ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {