Shell script to copy the logs from production to DR
 

Hello,
I am trying to write a shell script to copy the archivelogs from production server to the DR server but i am not able to make it. I am attaching the code what i have tried please send me your answers.



#!/bin/bash
df -h |grep /var > mount_space
cat mount_space | awk '{print $4}' > free_space
if [ $b >= 1G ]
then
ls -lrth /home/prod/dr > lst_dr
tail -1 lst_dr | awk '{print $9}' > last_dr
ls -lrth /home/prod/prod > lst_prod
tail -1 lst_prod | awk '{print $9}' > last_prod
for ((i=last_dr;i<=lat_prod;i++))
do
cp /home/prod/prod/*.Z /home/prod/dr/
done
else
echo 'insufficient space to copy'
fi



Thanks,
Abhilash sriram

For starters, the test $b is invalid, you have not created, nor assigned a variable 'b'.

Try the following:

Also, after your first line, add a line:

When you re-run your script, it will print out some debug with those flags enabled. Post if there are further problems.

Shell script
 

Hi i have tried your code but its not working i am posting the information please go through the script and do the need full and also i am posting the output of the code. By setting the "set -xv" line after the first line the entire program is shown in the output once again i dont need that. Please go through the information.

[oracle@dbalab6 abhi]$ sh shell.sh
df -h |grep /var > mount_space
+ df -h
+ grep /var
b=`cat mount_space | awk '{print $4}'`
cat mount_space | awk '{print $4}'
++ cat mount_space
++ awk '{print $4}'
+ b=1.7G
if [ $b >= 1G ]
then
ls -lrth /home/prod/dr > lst_dr
tail -1 lst_dr | awk '{print $9}' > last_dr
ls -lrth /home/prod/prod > lst_prod
tail -1 lst_prod | awk '{print $9}' > last_prod
for ((i=last_dr;i<=lat_prod;i++))
do
cp /home/prod/prod/*.Z /home/prod/dr/
done
else
echo 'insufficient space to copy'
fi
+ '[' 1.7G 1G ']'
shell.sh: line 5: [: 1.7G: unary operator expected
+ echo 'insufficient space to copy'
insufficient space to copy

--> I do have checked the mount point space but its fine even though it is throwing the error.

--> I do have one more idea for this can we use rsync command to copy the logs but the problem in using this command is crosschecking of the archives is not happening.