shell的ps命令参数列表解释说明

Usage: ps [options]Basic options: -A, -e               all processes -a                   all with tty, except session leaders  a                   all with tty, including other users -d                   all except session leaders -N, --deselect       negate selection  r                   only running processes  T                   all processes on this terminal  x                   processes without controlling ttysSelection by list: -C <command>         command name -G, --Group <gid>    real group id or name -g, --group <group>  session or effective group name -p, --pid <pid>      process id     --ppid <pid>     select by parent process id -s, --sid <session>  session id -t, t, --tty <tty>   terminal -u, U, --user <uid>  effective user id or name -U, --User <uid>     real user id or name  selection <arguments> take either:    comma-separated list e.g. '-u root,nobody' or    blank-separated list e.g. '-p 123 4567'Output formats: -F                   extra full -f                   full-format, including command lines  f, --forest         ascii art process tree -H                   show process hierarchy -j                   jobs format  j                   BSD job control format -l                   long format  l                   BSD long format -M, Z                add security data (for SELinux) -O <format>          preloaded with default columns  O <format>          as -O, with BSD personality -o, o, --format <format>                      user defined format  s                   signal format  u                   user-oriented format  v                   virtual memory format  X                   register format -y                   do not show flags, show rrs vs. addr (used with -l)     --context        display security context (for SELinux)     --headers        repeat header lines, one per page     --no-headers     do not print header at all     --cols, --columns, --width <num>                      set screen width     --rows, --lines <num>                      set screen heightShow threads:  H                   as if they where processes -L                   possibly with LWP and NLWP columns -m, m                after processes -T                   possibly with SPID columnMiscellaneous options: -c                   show scheduling class with -l option  c                   show true command name  e                   show the environment after command  k,    --sort        specify sort order as: [+|-]key[,[+|-]key[,...]]  L                   list format specifiers  n                   display numeric uid and wchan  S,    --cumulative  include some dead child process data -y                   do not show flags, show rss (only with -l) -V, V, --version     display version information and exit -w, w                unlimited output width        --help <simple|list|output|threads|misc|all>                      display help and exitFor more details see ps(1).