On 11/6/18 11:46 AM, George Avrunin wrote: > On Tue, 6 Nov 2018 11:07:22 -0800, Paul Allen Newell <pnewell0705@xxxxxxxxx> > wrote: > >> Rick: >> >> Thanks for reply. I went through a bunch on man pages that do not list >> the -f option. After getting your email, I went looking for a bunch more >> and finally found one that had the -f and -d option. >> >> I note that 'sync --help' only provides 'Usage: sync [OPTION]' without >> listing what the options are. I have just followed their suggestion of >> running "info coreutils 'sync invocation'" which gives alot of options. >> >> Not certain why these options are more readily visible. I probably >> should have dug deeper but after a bunch of online docs showing no >> options I just figured there weren't any. >> >> Paul > > On both Fedora 28 and 29 (I don't have any older versions available), "man > sync" describes the -f option and "sync --help" returns the following: > > Usage: sync [OPTION] [FILE]... > Synchronize cached writes to persistent storage > > If one or more files are specified, sync only them, > or their containing file systems. > > -d, --data sync only file data, no unneeded metadata > -f, --file-system sync the file systems that contain the files > --help display this help and exit > --version output version information and exit > > GNU coreutils online help: <https://www.gnu.org/software/coreutils/> > Full documentation at: <https://www.gnu.org/software/coreutils/sync> > or available locally via: info '(coreutils) sync invocation' > > The link to the coreutils documentation gives more detail. (The man page also > points to that.) I'm not sure why you don't think the options are readily > visible, unless you're working on non-Fedora (or even non-Linux) systems. Did a bit of snooping with VMs I have with the following results: OS "man sync" "sync --help" --------------- --------------- ------------- F26 Full options Full options F27 Full options Full options F28 Full options Full options F29 Full options Full options CentOS 7 No options No options Ubuntu 17 Full options Full options Ubuntu 18 Full options Full options So, of the seven OSes I checked, only CentOS 7 didn't offer a full man page or show the options with "--help". Weird. ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - - - - Memory is the second thing to go, but I can't remember the first! - ---------------------------------------------------------------------- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
