printing of the process environment will fail silently.
-define a function which will check to see if procfs is mounted on /proc
-Implement this test if the user specified -e
-If procfs is not mounted on /proc and -e was specified, print a warning.
informing the user that procfs(5) is required.
Reviewed by: wes, rwatson
(aka "command") will display "<defunct>", as does the output from "comm"
for those processes. Also do better checking for malloc() failures.
Submitted by: Cyrille Lefevre
when copying per-process info before starting to sort the list. This way,
sort-by-CPU or sort-by-memory will only calculate values once-per-process,
instead of twice-per-comparison. Also take advantage of this to simplify
the pscomp() routine.
process id, instead of using pid==0. Ie, `ps -p 12,' and `ps -p ,12'
are now errors (instead of being treated like `ps -p 0 -p 12').
Noticed by: Cyrille Lefevre on freebsd-arch
is treated like `ps -t p0', instead of changing it to `ps -T p0'.
Note that `ps t' is still changed to `ps -T', since that is one of
the main reasons for this kludge processing...
Noticed by: Jilles Tjoelker on freebsd-arch
more special situations. This is the code which process `ps blah',
when "blah" does not include a leading '-'.
This change also removes a long-undocumented BACKWARD_COMPATIBILITY
compile-time option, where:
ps -options arg1 arg2
(with no '-' on "arg1" and "arg2") was treated as:
ps -options -N arg1 -M arg2
This also changes `ps' to check for any additional arguments after
processing all the '-'-options, and attempt to use those arguments as
a pid or pidlist. If an extra argument is not a valid pidlist, then
`ps' will print an error and exit. This seems a more generally useful
extension of the kludge-option processing than the -N/-M behavior, and
has fewer confusing side-effects.
Reviewed by: freebsd-arch
(if trying to match only one real-group or one session-id), now that
those options are implemented in src/sys/kern/kern_proc.c (v1.203).
PR: bin/65803 (a very tiny piece of the PR)
Submitted by: Cyrille Lefevre
This corrects a problem of lost-precision for `-r' (sort-by-CPU). Also,
for sort-by-CPU and sort-by-memory, any processes which have the same
value CPU or MEMORY are now sorted by TTY and then (if needed) by pid.
(* - I just added the NODEV checks, after doing some testing of my own)
Submitted by: bde
MFC after: 1 week
(if any) and exit, thus matching the behavior on -stable and other OS's.
My earlier attempt to fix this (v1.65) only seemed to work because of a
lucky random value in nentries (which was not being initialized back
when I tested that earlier patch).
is compiled with LAZY_PS, so that there is only one PS_ARGS string to
modify when changing the option-list. Also get `-f' to show up in the
usage() statement when compiled with LAZY_PS.
- Change `-p' to allow a list of process IDs, and `-t' to allow a list
of terminal names, instead of only a single value for each.
- Add the `-A' option of SUSv3, which is exactly the same as `-ax'.
- Add the `-G gidlist' (group id).
- Allow any of these "selector options" to be specified multiple times,
and have `ps' keep adding to a given list -- instead of replacing the
previously-specified values.
- Fix interactions between selector-options, so that: "If any are
specified, ... ps shall select the processes represented by the
inclusive OR of all the selection-criteria options." (from SUSv3)
- Add a `-X' option, which is the reverse of the `-x' option.
- various minor improvements in parsing and error handling.
This does not get us to match POSIX/SUSv3, but it gets us closer. The
`-g pgidlist', `-R ruserlist' and `-s sidlist' options mentioned in
freebsd-standards are still under debate, so they skipped for now.
It should be true that this introduces no user-visible incompatible
changes, except to support "new stuff" that was not supported before.
just print the header (if any) and exit, thus matching the behavior on -stable
and other OS's.
Also adds support for <x> being a comma-separated list of processes, and does
a much better checking for invalid-values of <x>, such as 'ps -p someword'.
Reviewed by: mentioned on freebsd-current
MFC after: 10 days
one that is already there. This is consistent with GNU ps(1)'s BSD mode, and
POLA.
Reported by: Andy Farkas <andyf@speednet.com.au>
Tested by: Andy Farkas <andyf@speednet.com.au>
