Looking at this snippet: $? will always be true (0) since the previous command is xyz="$abc" which is a variable assignment, which will always be successful..
i wrote plsql procedure that executed shell command
using java class
my problem is that in some reason
the shell command ( liks Is -l , mv ... ) are not recordnize
can someone help me with that
10x
Alodvg (2 Replies)
i'm writing some simple scripts to help me learn perl.
why does the print command get called after the shell script is executed?
the purpose of the shell script is to simply echo to the screen "script run". which is does, but before the print command, you can clearly see the shell script is... (3 Replies)
Hi,
I am working on a shell script that would verify if the mount command has executed or not. So , i have been doing this.
mount /dev/cdrom /mnt/cdrom
echo "$?"
if ; then
echo " Mount succesful"
else
echo " Mount unsuccessful"
fi (3 Replies)
Hi everyone,
when executing this command in unix:
echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error.
here is content of my script:
tdbsrvr$ vi hc.sh
"hc.sh" 22 lines, 509... (4 Replies)
Hi
As per my requirement when I run . ./file.sh am getting the following error
-bash:ELF: command not found
when i execute as ./file.sh it is getting executed.How to resolve this.
Thanks in advance. (3 Replies)
Hi Guys,
I like to output every command executed in the script to a file.
I have tried set -x which does the same.
But it is not giving the logs of the child script which is being called from my script.
Is there any parameters in the Set command or someother way where i can see the log... (2 Replies)
Geeks,
Could you please help me out in my script and identify the missing piece. I need to check/get the exit status of a remote command executed on remote host through script and send out an email when process/processes is/are not running on any/all server(s).
Here's the complete... (5 Replies)
I am able to execute awk command from shell prompt. but the same command is not getting executed when written and run in a bash script
the command from bash cmd prompt.
awk '/world/{for (i=2; i<NF; i++) printf $i " "; print $NF}1' myfile >tmp$$ ; mv tmp$$ myfile
file:
# hello world my... (4 Replies)
Hi ,
I have written a shell script to call a java program say load_id.sh .This sh script indeed is executed implicitly in other sh script which calls 2 more sh scripts one by one. I need to check if the load_id.sh (which calls java program) is executed successfully only then continue with... (1 Reply)
Discussion started by: preema
1 Replies
LEARN ABOUT ULTRIX
kvar
kvar(8) System Manager's Manual kvar(8)Name
kvar - modify RISC kernel variables in memory or on disk
Syntax
/usr/etc/kvar -r(b|w|l) [options] vmunix
/usr/etc/kvar -w(b|w|l) [options] vmunix
Description
The command allows you to read or write RISC kernel variables, either in the on-disk image of or the active in-memory image. The -r form
of the command does variable reads; the -w form does variable writes. The variable length qualifiers are: b (1 byte), w (word, or 2
bytes), and l (longword, or 4 bytes).
Variable contents are displayed in hexadecimal format.
Options-a address Specifies the address of the kernel variable. Either the -a or -s option must be specified. The address is specified as
either a positive decimal or hexadecimal constant.
-k Instructs to use the in-memory image of The default is to use the on-disk copy.
-l Searches for a local symbol. The default is a global symbol search.
-o offset Adds an offset to the address (or address of the symbol name). The offset value is specified as either a positive decimal or
hexadecimal constant.
-s name Specifies the name of the kernel variable.
-v value Specifies the new value to be assigned by the -w form of The -v option is ignored if the -r form of is being used. The value
is specified as either a positive decimal or hexadecimal constant.
Restrictions
You must have appropriate file access permissions for (and for with the -k option).
The command is available only on RISC systems. For VAX systems, use to modify kernel variables.
Examples
This example reads the variable `udpcksum' from the running kernel image:
% kvar -k -rl -s udpcksum /vmunix
This example sets the `xyz' variable to zero in the running kernel image:
% kvar -k -wl -s xyz -v 0 /vmunix
This example sets the variable `xyz' to -1 in the on-disk image of making this value persistent across reboots:
% kvar -wl -s xyz -v 0xffffffff /vmunix
This example sets to zero 1 byte at offset 2 from address 0x80161a98 in the running kernel image:
% kvar -k -wb -o 2 -a 0x80161a98 /vmunix
FilesSee Alsoadb(1), dbx(1)
RISC kvar(8)