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# 1  
Old 04-11-2008
Question about Setting Flags
I have a script which will look for a test folder under the parent directory. If the folder contains test folder then create the same directory structure in other remote machine.

Once the directories are created then transfer all the contents of that test folder.

this is what i am doing :-

Code:
LOG_FILE_DIR="/home/chris/" 
   LOCAL_LOG_FILE=$LOG_FILE_DIR/"server_`date +%m%d%Y`.log" 
   SENDMAIL=0 
   MAIL_FILE=tmp.txt 
   REMOTE_DIR="/home/john" 


   cd /home/mike
   for dir in *; do
   if [ -d ${dir}/"test" ]; then

   /usr/local/bin/ssh -l melo ferrari "mkdir -m 777  $REMOTE_DIR/$dir" >>$LOCAL_LOG_FILE 2>&1
   STATUS=$?
   echo "Status = $STATUS"
   if [ $STATUS != 0 ]; then
   SENDMAIL=1
   echo "Cannot create directory $dir " >> $MAIL_FILE
   fi

   scp -r ${dir}/"test" ferrari:$REMOTE_DIR/${dir}/
   TESTING=$?
   echo "Testing = $TESTING"
   if [ $TESTING != 0 ]; then
   SENDMAIL=1
   echo "Cannot SCP for $dir " >> $MAIL_FILE
   fi

   fi 
   done

   if [ $SENDMAIL != 0 ]; then
   mail -s "Script Failed" chris1234@hotmail.com <$MAIL_FILE
   fi
   
   exit 0

The first time the script runs the value for STATUS is 0 but the second time the script runs the value for STATUS is 2. The first time directories are not created in the remote machine that is why the value for STATUS IS 0. The second time the value is 2 because the directories already exist in my remote machine.

So because of the value for STATUS is 2 i always get an email that "It failed to create the directory" because the directory already exist.

How can i get rid of that STATUS = 2 value? I mean is there any alternative?
# 2  
Old 04-11-2008
It's your script, you can make it not fail if the error is non-fatal.

Having said that, the easy workaround would seem to be

Code:
/usr/local/bin/ssh -l melo ferrari "test -d $REMOTE_DIR/$dir || mkdir -m 777  $REMOTE_DIR/$dir" >>$LOCAL_LOG_FILE 2>&1

Also note that anything along the lines of

Code:
command
STATUS=$?
if [ $STATUS != 0 ]; then ...

is just a very clumsy way to say

Code:
if command; then ...

unless you specifically need to have side effects such as STATUS being equal to the exit code of that command regardless of whether it succeeded.
# 3  
Old 04-11-2008
Era thanks. Usually i do :-

Code:
if[ ? != 0 ]; then
SENDMAIL=1
.
.

Anyways i tried your solution era the value for STATUS is still 2 for the second run. So in other words i still get the email because the return value for the mkdir -777 command is not 0. It's 0 only the first time when it runs.

The second time is 2 because the directories are already created in the remote machine and it tries to create it again.

I have been searching on google for this problem but not yet lucky.

Code:
/usr/local/bin/ssh -l melo ferrari "test -d $REMOTE_DIR/$dir || mkdir -m 777  $REMOTE_DIR/$dir" >>$LOCAL_LOG_FILE 2>&1

Not working
 
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