Public bug reported:
I was incrementing COLUMNS while using 'ps aux' to search for a
particular gdm process, when I noticed that that output length does not
increment by a single character. Rather it increments, then truncates,
and increments again.
Here's a sample using a for..loop to increment COLUMNS:
$ n=0; m=81; for ((c=${n}; c<=${m} ; c++)) ; do echo ${c}:
$(COLUMNS=${c} ps aux 2> /dev/null | grep ^gdm | grep 22693 ) ; done
0: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon
--gconf-prefix=/apps/gdm/simple-greeter/settings-manager-plugins
1: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /us
2: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /us
3: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr
4: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /us
5: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/
6: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
7: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/
8: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
9: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
10: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/
11: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gno
12: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
13: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnom
14: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/
15: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/g
16: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-
17: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /us
18: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
19: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gn
20: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-
21: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-sett
22: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings
23: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr
24: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
25: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/g
26: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnom
27: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-s
28: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-sett
29: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-setting
30: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings-d
31: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings-daem
32: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/
33: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gno
34: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /us
35: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/
36: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
37: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/
38: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gn
39: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnom
40: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-
41: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-se
42: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-sett
43: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settin
44: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings
45: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings-d
46: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings-dae
47: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-settings-daemo
48: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/
49: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gn
50: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnom
51: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-
52: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-se
53: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-sett
54: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settin
55: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings
56: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-d
57: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-dae
58: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemo
59: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon
60: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --
61: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gc
62: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gcon
63: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gconf-
64: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gconf-pr
65: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gconf-pref
66: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gconf-prefix
67: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05
/usr/lib/gnome-settings-daemon/gnome-settings-daemon --gconf-prefix=/
68: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /us
69: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr
70: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/
71: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/l
72: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/li
73: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib
74: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/
75: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/g
76: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gn
77: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gno
78: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnom
79: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome
80: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-
81: gdm 22693 0.0 0.3 233548 11800 ? Ss May13 0:05 /usr/lib/gnome-s
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: procps 1:3.2.8-1ubuntu4.2
ProcVersionSignature: Ubuntu 2.6.32-41.88-generic 2.6.32.59+drm33.24
Uname: Linux 2.6.32-41-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Tue May 15 22:00:53 2012
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: procps
** Affects: procps (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid ubuntu-une
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1000018
Title:
ps aux with COLUMNS displays odd pattern
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1000018/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
