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  1. or download this
    $  perl -E ' @c = `ls f*.*`; $return_code = `echo $?`; say scalar $ret
+urn_code;'
0
  2. or download this
    $  perl -E ' @c = `ls foobar.*`; $return_code = `echo $?`; say scalar 
+$return_code;'
ls: impossible to find foobar.*: No such file or directory
512
  3. or download this
    $ ls *.* | sort | perl -E '@c = <>; say scalar @c, " files";  $return_
+code = `echo $?`; say scalar $return_code;'
294 files
0
  4. or download this
    $ ls  foobar.*  | perl -E ' $return_code = `echo $?`; say scalar $retu
+rn_code;'
ls: impossible to find foobar.*: No such file or directory
0