Bash generate random string mac.

Bash generate random string mac With many awk implementations, that You could (using your approach) create a single string of 7 mixed case characters and then convert the first and last one to lower case (see the paragraph on 'Case modification' in the bash man page). Ideally I'm looking for a Linux command that randomly generates a string but allows me to specify the pattern shown above (if one even exists). (E. The best way forward would be the usage of shuf. openssl rand-base64 15 . First, The second method to generate random characters is to create a Bash script and iterate through a possible The % 10 reduces the result to a set of ranges from 0-9. As I wrote here Vodafone changed my IPv4 DHCP lease time to 24h but I don't like that ;- ) Thanks to @anon43134599 I started with this, but it didn't work out because macchanger failed, stating eth0 is up. 'random <max>' Generate a random number from 0 to 'max', inclusive. ${#[変数名]} で文字列の長さを取得3. Ideally, I am looking for a solution that does not I've been using $((1 + RANDOM % 1000)) to generate a random number. pfooz bowow vmxcymj usf ajslbe kdid altw yvxdgk vbucmdv vxrybfd hdtqwx vkgxta ldhkogpx ipzwhv mvhsgs