Command line and full screen utilities for browsing procfs, a "pseudo" file system dynamically generated by Linux to provide information about the status of entries in its process table.
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Jim Warner da02101513 top: fix additional SEGVs if no tasks were displayable
This patch is an outgrowth of that commit shown below.

Many additional potential segmentation faults might be
encountered if interactive commands are opened up to a
user when a '-p' switch has a single non-existent pid.

[ always the 'k', 'L', 'r', 'Y' keys & maybe 'v' too ]

So, this patch will restrict such a loser (oops, user)
to a reduced subset of normal commands until he/she/it
quits then restarts top with something to be displayed
or issues the '=' command overriding that '-p' switch.

Reference(s):
commit d3203d99dd

Signed-off-by: Jim Warner <james.warner@comcast.net>
2020-09-16 14:26:59 +10:00
contrib miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
doc docs: just a few changes to that new pids man document 2020-06-29 21:13:40 +10:00
Documentation miscellaneous: remove some trailing whitespace buildup 2015-06-20 07:46:23 +10:00
include build-sys: fix some important 'tests.h' related issues 2020-08-17 21:49:08 +10:00
lib build-sys: tweak make & activate some overlooked tests 2020-08-17 21:49:03 +10:00
man-po misc: Tell po4a to handle email macros 2018-06-23 21:59:14 +10:00
misc build-sys: rename the 'tools' subdirectory to 'misc' 2012-03-02 21:25:38 +11:00
po vmstat: Add NEWS and revert comment from prev 2020-05-12 19:06:34 +10:00
proc library: tweak those system cpu statistics, <stat> api 2020-09-13 10:00:49 +10:00
ps library: make that 'escape_str' private to our library 2020-07-05 21:13:01 +10:00
testsuite kill: use sigqueue to pass value with the signal. 2020-05-11 17:36:12 +10:00
top top: fix additional SEGVs if no tasks were displayable 2020-09-16 14:26:59 +10:00
.gitignore misc: Update translations _________________ (catch up) 2018-05-06 07:19:38 +10:00
.gitlab-ci.yml test: Update gitlab CI YAML to use shared runner 2016-04-20 22:20:55 +10:00
AUTHORS Changed git site to gitlab 2015-05-10 14:57:50 +10:00
autogen.sh Fix a remaining util-linux word in autogen 2012-02-26 08:39:16 +11:00
ChangeLog Changed git site to gitlab 2015-05-10 14:57:50 +10:00
configure.ac build-sys: updated autoscan for that configure.ac file 2020-09-13 10:00:49 +10:00
COPYING license: update FSF addresses 2012-03-04 08:04:24 +11:00
COPYING.LIB miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
create-man-pot.sh misc: Update translations _________________ (catch up) 2018-05-06 07:19:38 +10:00
free.1 docs: use correct units in free.1 _________ (catch up) 2019-09-22 07:32:03 +10:00
free.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
INSTALL.md INSTALL.md: Replace blockquotes with code blocks 2020-04-24 18:56:16 +10:00
kill.1 kill: use sigqueue to pass value with the signal. 2020-05-11 17:36:12 +10:00
kill.c kill: use sigqueue to pass value with the signal. 2020-05-11 17:36:12 +10:00
Makefile.am build-sys: added a 'test_Itemtables' to testing scheme 2020-08-17 21:49:14 +10:00
NEWS top: fix potential SEGV when no tasks were displayable 2020-09-13 10:00:49 +10:00
pgrep.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
pgrep.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
pidof.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
pidof.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
pkill.1 procps 010114 2002-02-01 22:47:29 +00:00
pmap.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
pmap.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
pwdx.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
pwdx.c 0021-pwdx: Fix a misleading comment. 2018-06-23 21:59:14 +10:00
README.md misc: eliminate accumulated trailing whitespace, again 2016-03-12 14:53:53 +11:00
skill.1 skill: support namespaces 2013-04-18 13:59:44 -04:00
skill.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
slabtop.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
slabtop.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
snice.1 procps 010114 2002-02-01 22:47:29 +00:00
sysctl.8 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
sysctl.c sysctl: config directory order 2020-02-27 21:56:13 +11:00
sysctl.conf misc: Add some link examples to sysctl.conf (catch up) 2018-05-06 07:19:38 +10:00
sysctl.conf.5 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
tload.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
tload.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
translate-man.sh Fixed translate-man.sh for no top ps 2014-05-28 20:12:33 +10:00
uptime.1 docs: Fix typos in slabtop.1, sysctl.8 and uptime.1 2014-09-16 19:35:28 +02:00
uptime.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
vmstat.8 vmstat and watch manpage slight fixes 2020-07-01 08:05:53 +10:00
vmstat.c vmstat: Null the diskstats pointer 2020-09-13 10:25:19 +10:00
w.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
w.c library: eliminated the questionable 'procps.h' header 2020-07-05 21:13:01 +10:00
watch.1 vmstat and watch manpage slight fixes 2020-07-01 08:05:53 +10:00
watch.c watch: add additional notes about environment 2020-05-12 19:30:28 +10:00

build status procps

procps is a set of command line and full-screen utilities that provide information out of the pseudo-filesystem most commonly located at /proc. This filesystem provides a simple interface to the kernel data structures. The programs of procps generally concentrate on the structures that describe the processess running on the system.

The following programs are found in procps:

  • free - Report the amount of free and used memory in the system
  • kill - Send a signal to a process based on PID
  • pgrep - List processes based on name or other attributes
  • pkill - Send a signal to a process based on name or other attributes
  • pmap - Report memory map of a process
  • ps - Report information of processes
  • pwdx - Report current directory of a process
  • skill - Obsolete version of pgrep/pkill
  • slabtop - Display kernel slab cache information in real time
  • snice - Renice a process
  • sysctl - Read or Write kernel parameters at run-time
  • tload - Graphical representation of system load average
  • top - Dynamic real-time view of running processes
  • uptime - Display how long the system has been running
  • vmstat - Report virtual memory statistics
  • w - Report logged in users and what they are doing
  • watch - Execute a program periodically, showing output fullscreen

Reporting Bugs

There are a few ways of reporting bugs or feature requests:

  1. Your distributions bug reporter. If you are using a distribution your first port of call is their bug tracker. This is because each distribution has their own patches and way of dealing with bugs. Also bug reporting often does not need any subscription to websites.
  2. GitLab Issues - To the left of this page is the issue tracker. You can report bugs here.
  3. Email list - We have an email list (see below) where you can report bugs. The problem with this method is bug reports often get lost and cannot be tracked. This is especially a big problem when its something that will take time to resolve.

If you need to report bugs, there is more details on the Bug Reporting page.

Email List

The email list for the developers and users of procps is found at http://www.freelists.org/archive/procps/ This email list discusses the development of procps and is used by distributions to also forward or discuss bugs.