In Java it is possible to create a random UUID:
UUID uuid = UUID.randomUUID();
How to do this in Bash?
Bash – How to create a UUID in bash
bashuuid
Related Topic
- Linux – How to sort du -h output by size
- Linux – “-bash: !”: event not found”
- Linux – How to get the mount point of flash drive by using uuid
- Linux – How to create a randomly keyed, encrypted swap partition, referring to it “by-uuid”, on Debian
- Bash – Run an interactive bash subshell with initial commands without returning to the (“super”) shell immediately
- Change Instance UUID for VM in ESXi
- Lvm – Refresh uuid of physical device
Best Answer
See the
uuidgenprogram which is part of the e2fsprogs package.According to this,
libuuidis now part of util-linux and the inclusion in e2fsprogs is being phased out. However, on new Ubuntu systems,uuidgenis now in theuuid-runtimepackage.To create a uuid and save it in a variable:
On my Ubuntu system, the alpha characters are output as lower case and on my OS X system, they are output as upper case (thanks to David for pointing this out in a comment).
To switch to all upper case (after generating it as above):
To switch to all lower case:
If, for example, you have two UUIDs and you want to compare them in Bash, ignoring their case, you can do a
tolower()style comparison like this: