Learning the UNIX Operating System, Fourth Edition

Appendix B. Reference

Commands and Their Meanings

cancel request	Cancel an lp print request.
cat files	Display one or more files.
cd	Change to home directory.
cd pathname	Change working directory to pathname.
cp old new	Copy old file to new file.
date	Display current date and time.
grep “pattern” files	Show lines matching pattern in files.
kill PID	End process PID.
lp files	Send files to default printer.
lpq	Check requests on lpr printer queue.
lpr files	Send files to default printer.
lprm request	Cancel an lpr print request.
lpstat	Check requests on lp printer queue.
ls	List names of files in working directory.
mail	Read your own mail.
mail user	Send mail to user.
man command	Display manual page of command.
mkdir pathname	Create a new directory with pathname.
more files	Display one screenful of each file at a time.
mv old new	Move or rename old file to new file.
pg files	Display one screenful of each file at a time.
ps	List your processes and their PIDs.
pwd	Print working (current) directory name.
rm files	Remove files.
rmdir pathname	Remove empty directory with pathname.
sort files	Sort lines of files.
who	List users currently on system.
who am i	Display listing for this session.