判断是否为正确的mac地址

酋长海布里

用户输入，截取后判断，大小写可都可以，但是必须使用 : 隔开，其余就是mac本身的书写规则，12位16进制数（如 1a:2b:3c:4d:5e:6f）

jason680

回复 1# 酋长海布里

$ mac=1a:2b:3c:4d:5e:33; if echo $mac | grep -qiP "^([\dA-F]{2}:){5}[\dA-F]{2}$"; then echo $mac yes; else echo $mac no; fi
1a:2b:3c:4d:5e:33 yes

$ mac=1a:2b:3c:4d:5e:; if echo $mac | grep -qiP "^([\dA-F]{2}:){5}[\dA-F]{2}$"; then echo $mac yes; else echo $mac no; fi
1a:2b:3c:4d:5e: no

$ mac=1a:2b:3c:4d:5e:gg; if echo $mac | grep -qiP "^([\dA-F]{2}:){5}[\dA-F]{2}$"; then echo $mac yes; else echo $mac no; fi
1a:2b:3c:4d:5e:gg no

   

q1208c

http://stackoverflow.com/questio ... at-of-a-mac-address