this question is probably trivial to most of you but i do not have the answer.
the task is simple...
yank 7 lines of text from one file and paste them to another
so while in command mode i enter
"b7yy and i get 7 lines yanked
exit vi with :q!
open the new file
while in command mode i... (2 Replies)
Hi All,
I am checking for a empty input file to do some further action , but I am getting exit status 0 in both the cases , for empty and non empty file both.
The value of $? is coming 0 in if part also and else part too.
#!/bin/ksh
if ]; then
echo "data"
# exit 0
echo "$?"
else... (4 Replies)
I have only some info into my buffer, but after a rssi command I see the folowing lines expected into buffer but not present :
rssi=-106
rssi=-109
I see in my buffer only the first part of the output, here you are a part of script :
#!/usr/bin/expect -f
#global expect_out
match_max 10000000... (1 Reply)
First, to level set: I'm proficient enough with basic BASH scripting for simple things (say, 4 out of 10), but this current project really requires a higher understanding of EXPECT than I have.
I have an interactive-only control application residing locally on a database server that I would... (2 Replies)
Hi, I got problem with queue code how to determined empty and full and problem with while loop
Here is my pseudo code :
Input page Access
Input Pgae Frame
For i =3 to pageframe count by 1
construct queue of size i
set pageFaultCount to 0
while morepages do
page = NextPage... (1 Reply)
AIX Version 6.1 and 7.1.
I understand that when the OS initially creates the FS and inodes, its pretty strict, but not always tuned to a 1:1 ratio. I see the same thing when adding a whole disk LV to a separate device.
It seems that when we expand a filesystem the inodes don't get tuned... (5 Replies)
Discussion started by: mrmurdock
5 Replies
LEARN ABOUT DEBIAN
dmesg
DMESG(1) User Commands DMESG(1)NAME
dmesg - print or control the kernel ring buffer
SYNOPSIS
dmesg [options]
dmesg --clear
dmesg --read-clear [options]
dmesg --console-level level
dmesg --console-on
dmesg --console-off
DESCRIPTION
dmesg is used to examine or control the kernel ring buffer.
The default action is to read all messages from kernel ring buffer.
OPTIONS
The --clear, --read-clear, --console-on, --console-off and --console-level options are mutually exclusive.
-C, --clear
Clear the ring buffer.
-c, --read-clear
Clear the ring buffer contents after printing.
-D, --console-off
Disable printing messages to the console.
-d, --show-delta
Display the timestamp and time delta spent between messages. If used together with --notime then only the time delta without the
timestamp is printed.
-E, --console-on
Enable printing messages to the console.
-f, --facility list
Restrict output to defined (comma separated) list of facilities. For example
dmesg --facility=daemon
will print messages from system daemons only. For all supported facilities see dmesg --help output.
-h, --help
Print a help text and exit.
-k, --kernel
Print kernel messages.
-l, --level list
Restrict output to defined (comma separated) list of levels. For example
dmesg --level=err,warn
will print error and warning messages only. For all supported levels see dmesg --help output.
-n, --console-level level
Set the level at which logging of messages is done to the console. The level is a level number or abbreviation of the level name.
For all supported levels see dmesg --help output.
For example, -n 1 or -n alert prevents all messages, except emergency (panic) messages, from appearing on the console. All levels
of messages are still written to /proc/kmsg, so syslogd(8) can still be used to control exactly where kernel messages appear. When
the -n option is used, dmesg will not print or clear the kernel ring buffer.
-r, --raw
Print the raw message buffer, i.e., don't strip the log level prefixes.
-s, --buffer-size size
Use a buffer of size to query the kernel ring buffer. This is 16392 by default. (The default kernel syslog buffer size was 4096 at
first, 8192 since 1.3.54, 16384 since 2.1.113.) If you have set the kernel buffer to be larger than the default then this option
can be used to view the entire buffer.
-T, --ctime
Print human readable timestamps. The timestamp could be inaccurate!
The time source used for the logs is not updated after system SUSPEND/RESUME.
-t, --notime
Don't print kernel's timestampts.
-u, --userspace
Print userspace messages.
-V, --version
Output version information and exit.
-x, --decode
Decode facility and level (priority) number to human readable prefixes.
SEE ALSO syslogd(8)AUTHORS
Karel Zak <kzak@redhat.com>
Theodore Ts'o <tytso@athena.mit.edu>
AVAILABILITY
The dmesg command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2011 DMESG(1)