My RHEL Notes: Difference between revisions
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m Created page with "== general notes == $ cmd [-opt] [arguments] cmd uses $PATH and arguments uses $PWD. Arguments are local to current working directory Press TAB TAB to list available commands ..." |
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Command column square brackets [ ] mean kernel started process. | Command column square brackets [ ] mean kernel started process. | ||
kill -l // list kill options | |||
process priority | |||
# nice cmd | |||
# renice cmd | |||
# jobs // to get job # | |||
kill -KILL %[job #] // to kill by job # | |||
== disk usage == | |||
use du command | |||
# du -sh /* 2> /dev/null // use STD ERROR to bit bucket | |||
# ps -eo "%c %n %y" // see ps man page, like %P & %U | |||
<center>[[Linux | To Linux]]</center> | |||
Revision as of 11:19, 28 September 2011
general notes
$ cmd [-opt] [arguments]
cmd uses $PATH and arguments uses $PWD. Arguments are local to current working directory
Press TAB TAB to list available commands in $PATH or list available arguments in $PWD.
managing system resources
Ctrl+Z jobs fg %[job #] ps [-fax]
Process Status can be suspended (S+PROCESS STATE CODES in $ ps man page to view), stopped (T), running (R+), zombie
running process is flagged to be scheduled in CPU cycles
- ps -ax
Command column square brackets [ ] mean kernel started process.
kill -l // list kill options
process priority
- nice cmd
- renice cmd
- jobs // to get job #
kill -KILL %[job #] // to kill by job #
disk usage
use du command
- du -sh /* 2> /dev/null // use STD ERROR to bit bucket
- ps -eo "%c %n %y" // see ps man page, like %P & %U