Need help with shell script


 
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# 1  
Old 10-25-2010
Need help with shell script

Hello Friends,
I need to create a shell script that check the presence of file1.txt if found then call a another script called script1 to run and exit. If it doesn’t find file1.txt then go into sleep for 10 seconds and checks again.
I have tried the following but it didn’t work. Plz help me out. Thanks.
Code:
#!/bin/bash

while
        [ ! RESULT ]
do
sleep 10
echo "sleeping"
RESULT=`find filname -print`
done
echo "I found it"
echo $RESULT
cd /usr/local/script1


Last edited by Scott; 10-25-2010 at 07:14 AM.. Reason: Please use code tags
# 2  
Old 10-25-2010
This can be accomplished using the label/goto, but unfortuantely goto is not supported by ksh, nor have i seen a successful implementation in bash as well. you could try the below script and put it in a crontab to run every 10 mins to get what you want. Please keep in mind that this is a script which will give you an idea how to go about it. Not calling another script as your requirement.
Code:
#!/bin/ksh

rc=`find . -name "file1" -print > found.txt`

if [[ -s found.txt ]]
then
echo "file found"
else
echo "file not found"
fi

# 3  
Old 10-25-2010
Code:
#!/bin/bash
while true
 do
  if [ -e file1.txt ] ; then
    echo calling script1 `sh script1`
    break
  else
    echo waiting for 10 seconds `sleep 10`
  fi
 done

This User Gave Thanks to ygemici For This Post:
# 4  
Old 10-25-2010
Try this:
Code:
until [ -f file1.txt ]
do
  sleep 10
done
/path/to/script1



---------- Post updated at 10:55 ---------- Previous update was at 10:47 ----------



Quote:
Originally Posted by raghu_shekar
This can be accomplished using the label/goto, but unfortuantely goto is not supported by ksh, nor have i seen a successful implementation in bash as well.
There is a reason for this and there is no need for gotos when there is structured programming. Have a look at the classic:
Go To Statement Considered Harmful
# 5  
Old 10-25-2010
Thanks. I will give it a try.
# 6  
Old 10-25-2010
Quote:
Originally Posted by Scrutinizer
There is a reason for this and there is no need for gotos when there is structured programming. Have a look at the classic:
Go To Statement Considered Harmful
However, in some situations goto statements can make the code more efficient, cleaner and concise, have a look at this discussion:

Linux: Using goto In Kernel Code | KernelTrap
 
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