2011/6/7 Ole Tange <[email protected]>:
> First: Did you read the man page? Specifically: EXAMPLE: Running the
> same command on remote computers (unimplemented)
No. I did now. But it seems quite important with that '-j0' thing.
$ time ./src/parallel "ssh {} 'hostname ; uptime'" ::: c d e f
(output removed)
real 0m1.825s
user 0m0.148s
sys 0m0.064s
$ time ./src/parallel -j0 --nonall -S c,d,e,f "hostname ; uptime"
(output removed)
real 0m1.284s
user 0m0.568s
sys 0m0.108s
$ time ./src/parallel -j0 "ssh {} 'hostname ; uptime'" ::: c d e f
(output removed)
real 0m1.027s
user 0m0.172s
sys 0m0.048s
Its nice with a new switch but I don't think '--onall' is really
needed. It gives a nice quoting and you can have a file with all your
servers which makes the command line much shorter but I am not
convinced.
/hans
