Table A-12Process (Web hosting directory) CommandsCommandPurposeatHas a command run at a
Table A-12Process CommandsCommandPurposeatHas a command run at a particular time. atqWorks with the at queue. crontabSets up commands to run at regular intervals. killStops a process by its number. Often used as kill -9for aharsh stop for something that won t die. killallStops a process by name rather than number. niceAssigns a CPU use priority to a process. pidofGets a program s ID number. psGets a lot of programs ID numbers, usually used as ps aux. pstreeShows the relationships between programs. reniceChanges a program s CPU use priority. topShows resource use over time. 403Appendix A: Common Linux Commands31_