./history.tests: history: illegal option: -x
-history: usage: history [-c] [n] or history -awrn [filename] or history -ps arg [arg...]
+history: usage: history [-c] [-d offset] [n] or history -awrn [filename] or history -ps arg [arg...]
./history.tests: history: cannot use more than one of -anrw
./history.tests: fc: illegal option: -v
fc: usage: fc [-e ename] [-nlr] [first] [last] or fc -s [pat=rep] [cmd]