attr -V (return code: 1)
attr: invalid option -- '-'
Unrecognized option: ?
Usage: attr [-LRSq] -s attrname [-V attrvalue] pathname # set value
attr [-LRSq] -g attrname pathname # get value
attr [-LRSq] -r attrname pathname # remove attr
attr [-LRq] -l pathname # list attrs
-s reads a value from stdin and -g writes a value to stdout
attr (return code: 1)
A filename to operate on is required
Usage: attr [-LRSq] -s attrname [-V attrvalue] pathname # set value
attr [-LRSq] -g attrname pathname # get value
attr [-LRSq] -r attrname pathname # remove attr
attr [-LRq] -l pathname # list attrs
-s reads a value from stdin and -g writes a value to stdout