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wwan: replace backticks by $(...)

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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 16:47:52 +02:00
parent 04a8d3f453
commit 4cfa63edc0
1 changed files with 1 additions and 1 deletions
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package/network/utils/wwan/files/wwan.sh
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@ -58,7 +58,7 @@ proto_wwan_setup() {
fi fi
else else
echo "wwan[$$]" "Searching for a valid wwan usb device..." echo "wwan[$$]" "Searching for a valid wwan usb device..."
for a in `ls /sys/bus/usb/devices`; do for a in $(ls /sys/bus/usb/devices); do
local vendor product local vendor product
[ -z "$usb" -a -f /sys/bus/usb/devices/$a/idVendor -a -f /sys/bus/usb/devices/$a/idProduct ] || continue [ -z "$usb" -a -f /sys/bus/usb/devices/$a/idVendor -a -f /sys/bus/usb/devices/$a/idProduct ] || continue
vendor=$(cat /sys/bus/usb/devices/$a/idVendor) vendor=$(cat /sys/bus/usb/devices/$a/idVendor)