# Win32:
perl -e "print grep !/unknown error/i, map $_.qq'\t'.($!=$_).$/, 0..127"

# Other:
perl -e 'print grep !/unknown error/i, map $_."\t".($!=$_).$/, 0..127'

##</code><code>##

# Win32:
perl -MErrno -e "my %e= map { Errno->$_()=>$_ } keys(%!); print grep !/unknown error/i, map sprintf('%4d %-12s %s'.$/,$_,$e{$_},$!=$_), 0..127"

# Other:
perl -MErrno -e 'my %e= map { Errno->$_()=>$_ } keys(%!); print grep !/unknown error/i, map sprintf("%4d %-12s %s".$/,$_,$e{$_},$!=$_), 0..127'

##</code><code>##

   0
   1 EPERM        Operation not permitted
   2 ENOENT       No such file or directory
   3 ESRCH        No such process
   4 EINTR        Interrupted function call