time - Version 5 UUID in Perl -

offensive:

I am new to overflow stack, and I say hello!

on topic:

I am creating 5 UUID for a version which requires creating and deleting random folders through a timestamp. Is time () via

  my $ md5_UUID = create_uuid_as_string (UUID_MD5, time. "$ Job");   
 These folders are created per run on each task, and are deleted after running. If the same UUID is generated in some way, then + -1000 can stop the jobs.  
 Is there any information that I would like to have or  any  the possibility of conflict (different data generating the same UUID)? Are they  really  unique? Also, which version of UUID should be used between SHA1 and MD5?   
 
 
 Use the OS tool  
 Perhaps there is a pure Pearl solution, but it Can be overkill. If you are on a Linux system, you can capture the results of  mktemp  or  uuidgen  and use them in your Perl script. For example:  
  $ perl-e 'print' mktemp - directory '' /tmp/tmp.vx4Fo1Ifh0 $ perl -e '$ folder = `uuidgen`; Print $ folder '113754e1-fae4-4685-851d-fb346365c9f0   
 The  mktemp  utility is good because it will create an atomic directory for you, returning additional directory name of the. You have the ability to modify the template in more meaningful names (see  man 1 mktemp ); On the contrary, the UUID is not really good in the message of useful semantics.