CompareVersion* Compare two version numbers* version string format: x.y.z, ( 0 <= x, y, y < 100).

io.Copy: The target file cannot be overwritten, if the target file is longer than the source file modify to ioutil.WriteFile.

！！！ it will delete the directory, use with caution ！.

FindFirstPID always returns the smallest pid.

this only for ipv4 */.

Equivalent to `ip -4 a flush $linkName`.

Equivalent to `ip -4 a show $linkName`.

Equivalent to `ip route show dev $linkName`.

Equivalent to `ip -6 a flush $linkName`.

Equivalent to `ip -6 a show $linkName`.

Equivalent to `ip -6 route show dev $linkName`.

Equivalent to `ip addr add $ipString dev $linkName`.

Equivalent to `ip addr del $ipString dev $linkName`.

Equivalent to `ip a flush $linkName`.

Equivalent to `ip a show $linkName`.

Equivalent to `ip link add $linkName type $linkType`.

Equivalent to `ip link del $linkName`.

Equivalent to `ip link set $linkName alias $alias`.

Equivalent to `ip link set $linkName down`.

Equivalent to `ip link set $linkName address $macAddr`.

Equivalent to `ip link set $linkName mtu $mtu`.

Equivalent to `ip link set $linkName name $newName`.

Equivalent to `ip link set $linkName promisc $flag`.

Equivalent to `ip link set $linkName txqlen $qlen`.

Equivalent to `ip link set $linkName up`.

Equivalent to `ip -d link show $linkName`.

Equivalent to `ip route add $IpRouteEntry`.

Equivalent to `ip route del $IpRouteEntry`.

LockFileExcl locks a file exclusively.

LockFileShar imposes a share lock on a file.

ReadLastNLine 读取文件的最后n行, 换行符号为LF/RF时有效, 返回数组为倒序.

ValidVersionString* Compare two version numbers* version string format: x.y.z, ( 0 <= x, y, y < 100).

WriteFile 写一些需要root权限的文件使用，zvr进程使用vyos用户执行，无法直接调用 syscall.

network service rule comment*/.

fn, regFn CompareStringFunc.

Filelock defines an file lock (shared or exclusive).

# sudo ipset list -o xml <ipset name="eth3.in-1001-source"> <type>hash:ip</type> <header> <family>inet</family> <hashsize>1024</hashsize> <maxelem>65536</maxelem> <memsize>344</memsize> <references>0</references> </header> <members> <member>1.1.1.1</member> <member>2.2.2.1</member> <member>1.1.1.2</member> </members> </ipset> <ipset name="eth3.in-1003-source"> <type>hash:ip</type> */.

pidmon - a simple pid monitor.

ByAge implements sort.Interface for []Person based on the Age field.