How to Display Information About Processes

1. (Optional) Use output from the ps command to obtain the identification number of the process you want to display more information about.

   # ps -e | grep process

   process

   Name of the process you want to display more information about.

   The process identification number is in the first column of the output.

2. Use the appropriate /usr/bin/proc command to display the information you need.

   # /usr/proc/bin/pcommand pid

   pcommand	Process tool command you want to run. Table 63-2 lists these commands.
   pid	Identification number of a process.

Examples--Displaying Information About Processes

The following example shows how to use process tool commands to display more information about an lpsched process. First the /usr/proc/bin path is defined to avoid typing long process tool commands. Next, the identification number for lpsched is obtained. Finally, output from three process tool commands is shown.

 [Adds the /usr/proc/bin directory to
the PATH variable. ] # PATH=$PATH:/usr/proc/bin
# export PATH
 [Obtains the process identification number for lpsched. ] # ps -e | grep lpsched
   191 ?        0:00 /usr/lib/lpsched
 [Displays the current working directory for lpsched.] # pwdx 191
 
191:    /
 [	Displays the process tree containing lpsched. ] # ptree 191
 
183   /usr/lib/lpsched
 [Displays fstat and fcntl
information. ] # pfiles 191
210:    /usr/lib/lpsched
  Current rlimit: 1024 file descriptors
   0: S_IFIFO mode:0000 dev:165,0 ino:83 uid:0 gid:0 size:0
      O_RDWR
   1: S_IFIFO mode:0000 dev:165,0 ino:83 uid:0 gid:0 size:0
      O_RDWR
   3: S_IFCHR mode:0666 dev:32,24 ino:34307 uid:0 gid:3 rdev:21,0
      O_WRONLY FD_CLOEXEC
   4: S_IFDOOR mode:0444 dev:171,0 ino:4124226512 uid:0 gid:0 
      size:0
      O_RDONLY|O_LARGEFILE FD_CLOEXEC  door to nscd[200]
   5: S_IFREG mode:0664 dev:32,24 ino:311 uid:71 gid:8 size:0
      O_WRONLY

The following example shows output from the pwait command, which waits until a process terminates, then displays information about what happened. The following example shows output from the pwait command after a Command Tool window was exited.

$ ps -e | grep cmdtool
  273 console 0:01 cmdtool
  277 console 0:01 cmdtool
  281 console 0:01 cmdtool
$ pwait -v 281
281: terminated, wait status 0x0000