$ bc -v
bc 1.07.1
Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006, 2008, 2012-2017 Free Software Foundation, Inc.
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$ bc -h
usage: bc [options] [file ...]-h --help print this usage and exit-i --interactive force interactive mode-l --mathlib use the predefined math routines-q --quiet don't print initial banner-s --standard non-standard bc constructs are errors-w --warn warn about non-standard bc constructs-v --version print version information and exit
[root@dev127 myb]# bc
bc 1.06.95
Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
5/3
1
scale=5;5/3
1.66666
exit
0
^C