CAL (man1p)
cal — print a calendar
cal — print a calendar
tsort — topological sort
ipcrm — remove an XSI message queue, semaphore set, or shared memory segment identifier
cp — copy files
lp — send files to a printer
logger — log messages
fg — run jobs in the foreground
iconv — codeset conversion
umask — get or set the file mode creation mask
tabs — set terminal tabs