Running flow-tools version 0.68 on Debian using the Debian package. I am trying to use the -u option as part of the command line:
 
  flow-capture -u -w /tmp -n 1439 -V 5 -E 1G 192.168.1.2/0/9110
 
Man page says that it is supported:
 
  flow-capture [-hu]  [-b big|little]  [-C  comment]   [-c  flow_clients]
       [-d  debug_level]  [-D daemonize]  [-e expire_count]  [-f filter_fname]
       [-F filter_definition]  [-E expire_size]   [-n  rotations]   [-N  nest-
       ing_level]   [-p pidfile]  [-R rotate_program]  [-S stat_interval]  [-t
       tag_fname]  [-T active_def|active_def,active_def ...]  [-V pdu_version]
       [-z  z_level]  -w  workdir   [-x  xlate_fname]   [-X  xlate_definition]
       localip/remoteip/port

-u        Preserve inherited umask.  By default the umask will  be  set
                 to 0022.
 
but I only get the flow-capture help screen output to terminal Without -u no problem. Can anyone confirm that this option works on 0.68?
 
Thanks,
Ian
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