Q. I am able to write PHP or Perl script where I can find out time difference between script executions. Now I have .shtml file that is nothing but a shell script outputting some data to browser. What I want is time difference or time it took to execute a script. How do I write a shell script?
A. Your Logic should be as follows:
* Get start time and store to a variable START
* Execute a shell script
* Grab output and send to web browser
* Get time again and store to a variable END
* Calculate difference using expression END – START
Shell script o get the time difference
Here is small script that does the same thing (please note that script teated on GNU/Linux and with GNU date command only):
$ vi timediff.bash
Append text as follows:
#!/bin/bash START=$(date +%s) # do something # start your script work here ls -R /etc > /tmp/x rm -f /tmp/x # your logic ends here END=$(date +%s) DIFF=$(( $END - $START )) echo "It took $DIFF seconds"
Save and execute the script as follows:
$ chmod +x timediff.bash
Execute the script:
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