Script to run command one by one Post: 302793783

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Top Forums Shell Programming and Scripting Script to run command one by one Post 302793783 by Don Cragun on Saturday 13th of April 2013 04:54:38 PM

04-13-2013

Registered User

Quote:

Originally Posted by misterx12345

I am using bash.
The reason for using the sh was something I found on the internet, wasn't aware it was bourne shell.
I just want to direct all the output to one file, which I did manage by replacing " > cmd$i_stdout.txt 2> cmd$i_stderr.txt " with " > output.txt 2>&1"
I just need now need the timestamp when every cmd* commands runs in a different file (this is to see how long the commands run).

we get these commands usually in one file from a different department, they don't have enough privileges on their account to execute these command
every command creates and *.csv file, we just copy the commands one by one into a file (commands are very long) and then execute it and send the *.csv file by email and
in the beginning we just got couple of commands, but now we are getting a lot and
these commands can sometime take hours to run
this is too much effort, because sometimes one command can take hours to run and we have to wait for the command to finish, before we can move on to the next one,
I want to automate this as much as possible and the script you gave does the job. We are working on Solaris 10 and I am using the bash shell.
Thx.

It seems to me that putting the output from all of the cmd* scripts in a single file is just making your life harder (since you have to manually find the end of each command file's output and write it to a separate file to mail it back to the user), but I have done as you requested. I did sneak in two status lines in the output.txt file that should make it easier to separate the output after all of the cmd* files have finished and have also included the exit code in the closing separator line in output.txt since I would think your users will want that information.

This script logs when a script starts, when it ends (and includes its exit status), and when the last script ends to the file log.txt. Both log.txt and output.txt are cleared when you start this script; so don't run it a second time before you extract all of the data you need from output.txt. This seems dangerous to me, but it is what you requested.

Code:

#!/bin/bash
# Throw away output from previous runs.
> output.txt

# Redirect this script's output to log file.
exec > log.txt 2>&1

# Loop through all available cmd scripts.
i=1
while [ -f cmd$i ]
do      date "+cmd$i starting @ %c"
        date "+================ cmd$i start ================ %c" >> output.txt
        sh cmd$i >> output.txt 2>&1
        ec=$?
        date "+============= cmd$i exit code $ec ============= %c" >> output.txt
        date "+cmd$i exit code $ec @ %c" >> log.txt
        i=$((i + 1))
done
date "+Scripts finished @ %c"

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