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base-files: introduce a function to get kernel version number

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A new function "get_linux_version()" to normalize and print the
kernel version as an integer. In some migration scripts, it is
useful for checking the Linux kernel version.

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/19172
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit a0fe3cfb62)
Link: https://github.com/openwrt/openwrt/pull/20739
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Shiji Yang 2025-11-11 23:02:22 +02:00 • committed by Christian Marangi
parent ae51d0098e
commit 42ca1612a2
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7
package/base-files/files/lib/functions/system.sh
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@ -315,3 +315,10 @@ macaddr_canonicalize() {
dt_is_enabled() {
grep -q okay "/proc/device-tree/$1/status"
}
get_linux_version() {
local ver=$(uname -r)
local minor=${ver%\.*}
printf "%d%02d%03d" ${ver%%\.*} ${minor#*\.} ${ver##*\.} 2>/dev/null
}