Help with a loop Post: 302901984

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Top Forums Shell Programming and Scripting Help with a loop Post 302901984 by sudo on Saturday 17th of May 2014 01:34:15 AM

05-17-2014

Registered User

Quote:

Originally Posted by cnamejj

I got the impression from reading your posting that the status file (the one containing "closed" or "open") was on the remote server. If so, then the "grep" command of a local file won't help.

If the status file IS local to the server running the script, then Don Cragun's script looks good. But for some reason I think you're trying to check a status file on the remote end before starting the "rsync" locally?

You are correct. The script initially checks the remote file and creates a local copy which is used for authorizing rsync in the until loop. I know, its an extra step I should probably optimize by looking straight at the server.

---------- Post updated at 12:34 AM ---------- Previous update was at 12:23 AM ----------

Quote:

Originally Posted by Don Cragun

You didn't say what shell or operating system you're using. With any shell that accepts POSIX standard shell syntax, you could try the following simple change to your script:

Code:

STATUSFILE=/Users/patrick/Desktop/temp/remoteserverstatus
n=0
until grep -q closed "$STATUSFILE"; do
        n=$((n + 1))
        if [ $n -ge 100 ]
        then    echo 'server unavailable'
                exit 1
        fi
        echo 'waiting for sever to finish'
        sleep 3
done
echo 'running script'

Note the changes to the quotes used on your echo commands in addition to the added code.

Don, I like this a lot. I'm going to deploy it on Monday in my test environment but based on the test I've done so far, this works great. Thanks!

BASH/MACOSX10.7

sudo

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set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
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       o -b, --background Set the background color

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Version 1.23.1							  Sun Jan 8 2012						      set_color(1)