Unix is a Four Letter Word: Unix ---> Loops in scripts

Unix ---> Loops in scripts

Here is an example of a simple loop in a script. I use it to send out my biweekly junkmail messages.¹


    #!/bin/sh
    for i in `cat $HOME/jm/list`
    do
      mail -s 'Junkmail message number '$1 $i < jm.$1
    done

The script takes one line at a time from the file $HOME/jm/list and executes the command


    mail -s 'Junkmail message number '$1 $i < jm.$1

where $1 the first argument on the command line calling the script and $i is the line from the file $HOME/jm/list.

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¹ I no longer find the time to continue this. However, I do have a collection of amusing things my professors said while I was in grad school available on my website. (These quotes were a component of my junkmail messages.)