Shell Script Questions

[BriceH]

Here are a few of my questions about shell scripts. I'm not sure if this is the right section, but the Scripting section seemed more like a collection.

1. How do I have my shell script check for a -[letter]? For examle, if I want to have my shell script echo either yes or no:
Input: ./return.sh -y
Output: Yes
or
Input: ./return.sh -n
Output: No

2. How do I have my shell script access an iPhone / iPod Touch plugged in with a USB cable?

3. How do I make an Objective-C application run a shell script? I've heard that NSTask does this. How does NSTask work?

 

[ElDiabloConCaca]

1. http://www.mkssoftware.com/docs/man1/getopts.1.asp

2. You can't. Only iTunes can. Unless you jailbreak the phone/iPod, which is in a "gray" legal area at the moment.

3. http://www.insanelymac.com/forum/lofiversion/index.php/t114129.html

All three of these were found in less than 20 seconds with Google searches. (1) was found by searching for "shell script parse command line flags," (2) was found in my brain, and (3) was found with "objective-c execute shell script."