the return value of a process

rakesh uv <uvrakesh@gmail.comwrote:
# hi,
# is there any way to find the exact meaning of message
# given
# by a Unix command
# for example
# mv: cannot access hello.c
#
# similarly is there any way to find the meaning of the
# error number or message displayed
# by compilers
>
The operating system error messages are somewhat explained with the
command
man 2 intro