what is wrong here is that the ">" always overwrite the output file. use ">>" instead so it will append. make sure that the output file is blank before the start of the loop like:
Hello,
I have a cat.dat file, i would like shell to read each 3 lines and set this 3 lines to 3 different variables.
my cat.dat is:
11
12
+380486461001
12
13
+380486461002
13
14
+380486461003
i want shell to make a loop and assign 1st line to student_id, 2nd line to... (4 Replies)
Friends,
I have to execute a command and store its contents into an array using shell. this is what i have tried
#!/bin/bash
disk_names = ($(`iostat -xtc | egrep -v "device|nfs" | awk '{print $1}'| tr '\n' ' ' `))
But its throwing an error message as
./test-script
./test-script:... (6 Replies)
Hi,
I am writing a shell script where,
x=y
y=z
When I want to print z, I can do
$y
How do I use only "x" without any direct reference to "y" to print z?
Thanks,
-G (3 Replies)
Hi,
I have a text file with multiple lines, each having data in the below format
<DOB>,<ADDRESS>
I have to write a script which reads each line in the text file in loop, assign the values to these variables and do some further processing in it.
Using the following code prints the... (1 Reply)
Hi,
I have a text file with multiple lines, each having data in the below format <DOB>,<ADDRESS>
I have to write a script which reads each line in the text file in loop, assign the values to these variables and do some further processing in it.
Using the following code prints the values... (12 Replies)
Enclosed is comma separated text file. I need to write a korn shell program that will parse the text file and insert the values into Oracle database.
I need to write the korn shell program on Red Hat Enterprise Linux server.
Oracle database is 10g. (15 Replies)
Hello,
So I have approximately 300 files of raw data (.txt) files that I am using to perform statistical analysis. I have been able to construct a Fortran program that is able to perform my statistical analysis on a file by file basis.
However, I now want to be able to loop program through... (19 Replies)
Hi All,
I need small help on for loop syntax in C shell.
How can we read the values from a file (line by line) through C shell loop.
For Ex:
$Cat file1
data1
data2
data3
data4
$
I have to print those values in a variable and have to perform some steps...
Can anyone help on... (2 Replies)
hi guys, i want help... Reding XML file and print the values into the text file using linux shell script file as per below xml file
<sequence>
<Filename>aldorzum.doc</Filename>
<DivisionCode>US</DivisionCode>
<ContentType>Template</ContentType>
<ProductCode>VIMZIM</ProductCode>
</sequence>... (1 Reply)
Discussion started by: sravanreddy
1 Replies
LEARN ABOUT DEBIAN
bootlogd
BOOTLOGD(8) Linux System Administrator's Manual BOOTLOGD(8)NAME
bootlogd - record boot messages
SYNOPSIS
/sbin/bootlogd [-c] [-d] [-r] [-s] [-v] [ -l logfile ] [ -p pidfile ]
DESCRIPTION
Bootlogd runs in the background and copies all strings sent to the /dev/console device to a logfile. If the logfile is not accessible, the
messages will be kept in memory until it is.
OPTIONS -d Do not fork and run in the background.
-c Attempt to write to the logfile even if it does not yet exist. Without this option, bootlogd will wait for the logfile to appear
before attempting to write to it. This behavior prevents bootlogd from creating logfiles under mount points.
-r If there is an existing logfile called logfile rename it to logfile~ unless logfile~ already exists.
-s Ensure that the data is written to the file after each line by calling fdatasync(3). This will slow down a fsck(8) process running
in parallel.
-v Show version.
-l logfile
Log to this logfile. The default is /var/log/boot.
-p pidfile
Put process-id in this file. The default is no pidfile.
BUGS
Bootlogd works by redirecting the console output from the console device. (Consequently bootlogd requires PTY support in the kernel con-
figuration.) It copies that output to the real console device and to a log file. There is no standard way of ascertaining the real con-
sole device if you have a new-style /dev/console device (major 5, minor 1) so bootlogd parses the kernel command line looking for con-
sole=... lines and deduces the real console device from that. If that syntax is ever changed by the kernel, or a console type is used that
bootlogd does not know about then bootlogd will not work.
AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl
SEE ALSO dmesg(8),fdatasync(3).
Jul 21, 2003 BOOTLOGD(8)