loop within an execution command

Question

I would like to execute 120 models a shell script for 100 years. i.e.

start=1900; end=2000
using model1,model2, model3 and so on until 120 models

I can execute them manually with following command: (lets say 3 models)

exec "${script_dir}myscript $start $end $model1 $model2 $model3"

How can I use a loop to extend the above command something like

exec "${script_dir}myscript $start $end $model1 $model2 $model3 $model4 ..... $model120"

Please specify how the 120 models should be distributed over 100 years. — agc
– agc, Commented Jun 28, 2016 at 3:57
Are you really looking for a POSIX-compliant solution, as your tags suggest, or is bash acceptable (which would simplify the answer)? — mklement0
– mklement0, Commented Jun 28, 2016 at 4:12
I am looking something which will be look like exec ${script_dir}myscript $start $end $model1 $model2 $model3 and so on until $model120 Can you please suggest — Kay
– Kay, Commented Jun 28, 2016 at 5:36

Simon · Accepted Answer · 2016-06-29 03:36:27Z

3

start=1900
end=2000
command="\${script_dir}myscript \$start \$end"
i=1

while [ $i -le 120 ]
do
    command="$command \$model$i"
    i=`expr $i + 1`
done

exec $command

This script will simply do a for loop from 1 to 120 and concatenate all the models to your command.

edited Jun 29, 2016 at 3:36

answered Jun 28, 2016 at 4:00

Simon

8047 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Kay Over a year ago

Thank you for your answer. But I am looking something which will be look like exec "${script_dir}myscript $start $end $model1 $model2 $model3 and so on until $model120 Can you please suggest

Simon Over a year ago

Do you need the variable values or just this exact text?

Kay Over a year ago

I need the exact text. Because this command will provide the path of model to myscript.

Simon Over a year ago

I edited the script by escaping the $ signs in the command. This way you'll get the exact text. Not exactly sure what you're trying to do, because this will literraly try to execute the command ${script_dir}myscript which will probably result in "not found".

Collectives™ on Stack Overflow

loop within an execution command

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related