Shell script to open browser and get response back
in [Shell]
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From: srikanth on 30 May 2010 23:56 On May 31, 8:21 am, Bit Twister <BitTwis...(a)mouse-potato.com> wrote: > On Sun, 30 May 2010 19:08:01 -0700 (PDT), srikanth wrote: > > BTW, when i change to a while loop it is showing HEAD usage at the end > > of the script execution. > > Am i using HEAD in a wrong way? > > I can only guess last line(s) of the input file is not what > head expected. Yes, there is a blank line at the EOF that's why it is showing HEAD usage. But it is not showing if i use for loop. Is there will be any diff in between them in shell?
From: Bit Twister on 31 May 2010 02:55 On Sun, 30 May 2010 20:56:08 -0700 (PDT), srikanth wrote: > > Yes, there is a blank line at the EOF that's why it is showing HEAD > usage. Going to guess it really is two blank lines. :) It is the last one which exits the while loop, and the next to last which cause the error. > But it is not showing if i use for loop. Yes, the extra line made extra white space, which never showed up in i. > Is there will be any diff in between them in shell? Question is kind of vague. You have already proven code runs differently for a while/for loop. Solutions, o Continue to use your for solution and hope expanded cat line does not fail in the future. o You fix the input to be terminated by one line only, instead of two. o Use an if statement around HEAD, if i is not empty. Hint man test and watch for -n
From: srikanth on 31 May 2010 03:50 On May 31, 11:55 am, Bit Twister <BitTwis...(a)mouse-potato.com> wrote: > On Sun, 30 May 2010 20:56:08 -0700 (PDT), srikanth wrote: > > > Yes, there is a blank line at the EOF that's why it is showing HEAD > > usage. > > Going to guess it really is two blank lines. :) > It is the last one which exits the while loop, and the next to last > which cause the error. > > > But it is not showing if i use for loop. > > Yes, the extra line made extra white space, which never showed up > in i. > > > Is there will be any diff in between them in shell? > > Question is kind of vague. You have already proven code runs > differently for a while/for loop. > > Solutions, > o Continue to use your for solution and hope expanded cat line does > not fail in the future. > o You fix the input to be terminated by one line only, instead of two. > o Use an if statement around HEAD, if i is not empty. > Hint man test and watch for -n At last I have tried and got the script working as per my requirement.
From: srikanth on 31 May 2010 10:17 On May 31, 12:50 pm, srikanth <srikanth0...(a)gmail.com> wrote: > On May 31, 11:55 am, Bit Twister <BitTwis...(a)mouse-potato.com> wrote: > > > > > On Sun, 30 May 2010 20:56:08 -0700 (PDT), srikanth wrote: > > > > Yes, there is a blank line at the EOF that's why it is showing HEAD > > > usage. > > > Going to guess it really is two blank lines. :) > > It is the last one which exits the while loop, and the next to last > > which cause the error. > > > > But it is not showing if i use for loop. > > > Yes, the extra line made extra white space, which never showed up > > in i. > > > > Is there will be any diff in between them in shell? > > > Question is kind of vague. You have already proven code runs > > differently for a while/for loop. > > > Solutions, > > o Continue to use your for solution and hope expanded cat line does > > not fail in the future. > > o You fix the input to be terminated by one line only, instead of two. > > o Use an if statement around HEAD, if i is not empty. > > Hint man test and watch for -n > > At last I have tried and got the script working as per my requirement. One more thing here i want to know here.. How to add a progress bar to show the current status of the running script
From: Bit Twister on 2 Jun 2010 01:30
On Tue, 1 Jun 2010 21:34:10 -0700 (PDT), srikanth wrote: > > Just i need a progress bar some thing like 'Browsing URLs...' here the > dots should show the progress bar. > some thing like . . . again it should start . . . > I think you understood my question? So how can i implement this > technique in my script? I gave an example using printf "*" If you want a period, use printf "." Here save and run this #!/bin/bash _counter=0 _percentage=1 for i in 1 2 3 4 5 6 7 8 9 10 ; do let _counter="_counter + 1" if [ $_counter -gt $_percentage ] ; then printf "." _counter=0 sleep 1 fi done printf "\n" |