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 b8bfa17450 top: extend multi-byte support to 'Inspection' feature
The previous commit implemented multi-byte support for
the basic top user interaction and display provisions.
This commit completes multi-byte support by addressing
that 'Inspect Other Output' feature (the 'Y' command).

Few people probably exploit this very powerful feature
which allows the perusing of any file or piped output.
And even if nobody uses 'Y', someone will stumble over
it on the help screen and try it out. Assuming top was
not built with INSP_OFFDEMO defined, they'll end up on
the screen our translators have faithfully translated.

Without this patch, such a screen would display with a
bunch of 'unprintable' characters which will then show
in the standard (less-like) way as: '^A', '<C3>', etc.
In other words, those poor screens will be a big mess!

[ this program can even display an executable binary ]
[ while at that same time supporting Find/Find Next. ]
[ imagine, a file with no guarantee of real strings! ]
[ just try a Find using less with such binary files. ]

With this commit, the translated 'Y' demo screens will
now be properly shown, providing no invalid multi-byte
characters have been detected. Should that be the case
then they'll be displayed in that less-like way above.

And, if users go on to fully exploit this 'Y' command,
there is a good chance that a file or pipe might yield
output in a utf-8 multi-byte form. Should that be true
such output will thus be handled appropriately by top.

[ in many respects, this change was more challenging ]
[ than the basic support within the previous commit. ]
[ story of my life: least used = most effort needed. ]

Many thanks to our procps-ng translators which enabled
a proper test of these changed 'Y' command provisions:
. Vietnamese: Trần Ngọc Quân
. Polish: Jakub Bogusz
. German: Mario Blättermann
. French: Frédéric Marchal, Stéphane Aulery

[ and my sincerest apologies too, for my negligence! ]

Reference(s):
https://gitlab.com/procps-ng/procps/issues/68

Signed-off-by: Jim Warner <james.warner@comcast.net>
2017-10-01 22:25:18 +11:00
contrib miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
doc documentation: Update pids manual pages 2017-01-05 09:44:04 +11:00
Documentation miscellaneous: remove some trailing whitespace buildup 2015-06-20 07:46:23 +10:00
include tests: update template and add pids 2016-04-19 21:33:02 +10:00
lib kill: -l space between name parses correctly 2017-05-22 22:15:59 +10:00
man-po ps: recognize SCHED_DEADLINE 2016-11-21 21:56:37 +11:00
misc build-sys: rename the 'tools' subdirectory to 'misc' 2012-03-02 21:25:38 +11:00
po free: french translation alignment 2016-08-23 20:46:17 +10:00
proc library: fixed miscellaneous whitespace/comment issues 2017-10-01 22:25:18 +11:00
ps ps: have now added the NUMA node field display support 2017-05-22 21:38:10 +10:00
testsuite Port of merge request 49 to newlib 2017-08-19 23:05:22 +10:00
top top: extend multi-byte support to 'Inspection' feature 2017-10-01 22:25:18 +11:00
.gitignore Port of merge request 49 to newlib 2017-08-19 23:05:22 +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 Port of merge request 49 to newlib 2017-08-19 23:05:22 +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 docs: with systemd now in library, remember openproc.3 2014-07-18 20:49:57 +02:00
free.1 watch,free: interpet intervals in non-locale way 2016-07-03 16:20:48 +10:00
free.c misc: adapt 3 programs to some enum changes, <meminfo> 2017-06-04 21:36:23 +10:00
INSTALL.md docs: Updated documentation 2015-05-10 17:23:54 +10:00
kill.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
kill.c kill: -l space between name parses correctly 2017-05-22 22:15:59 +10:00
Makefile.am Port of merge request 49 to newlib 2017-08-19 23:05:22 +10:00
NEWS vmstat: Fix alignment for disk partition format 2017-09-25 09:24:42 +10:00
pgrep.1 pkill: Return 0 if successfully killed process 2017-02-04 12:00:24 +11:00
pgrep.c pkill: Return 0 if successfully killed process 2017-02-04 12:00:24 +11:00
pidof.1 pidof: support for omitted %PPID and additional separators 2013-10-14 15:38:33 +02:00
pidof.c related: respond to VAL macro addition of context parm 2016-08-07 21:40:48 +10:00
pkill.1 procps 010114 2002-02-01 22:47:29 +00:00
pmap.1 pmap: Including -p in the man page 2013-11-26 13:45:22 +01:00
pmap.c pmap: fix printing bug associated with the '-x' option 2016-09-11 09:31:05 +10:00
pwdx.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
pwdx.c Handle out of memory conditions. 2015-07-11 21:28:47 +02:00
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 Port of merge request 49 to newlib 2017-08-19 23:05:22 +10:00
slabtop.1 procps: Add a zero-width break point in slabtop.1 2015-06-01 22:04:40 +10:00
slabtop.c misc: eliminate all those remaining gcc -Wall warnings 2017-05-22 21:38:10 +10:00
snice.1 procps 010114 2002-02-01 22:47:29 +00:00
sysctl.8 docs: Fix typos in slabtop.1, sysctl.8 and uptime.1 2014-09-16 19:35:28 +02:00
sysctl.c Avoid confusing messages caused by EIO on reading 2017-08-20 09:22:58 +10:00
sysctl.conf docs: remove tcp_default_win_scale from sysctl.conf sample 2012-01-24 22:34:12 +01:00
sysctl.conf.5 misc: remove some newly introduced trailing whitespace 2016-09-26 07:40:45 +10:00
tload.1 docs: fix manual page warnings 2012-04-16 12:55:53 +02:00
tload.c Fix out of boundary write on 1x1 terminals 2017-08-19 23:10:26 +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: cleanup of library includes 2016-04-16 17:03:57 +10:00
vmstat.8 library: reverting tmpfs subtraction from cached (18-FEB-2014) 2014-04-30 13:59:34 +02:00
vmstat.c vmstat: Fix alignment for disk partition format 2017-09-25 09:24:42 +10:00
w.1 w: correct program help & man page regarding arguments 2015-09-07 18:11:48 +10:00
w.c related: fix inconsistencies in result type references 2016-08-07 21:40:48 +10:00
watch.1 documentation: Update watch man page 2016-07-03 16:20:58 +10:00
watch.c misc: eliminate all those remaining gcc -Wall warnings 2017-05-22 21:38:10 +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.