01-12-2010
Thanks for your reply, but still got a few questions...
According to this document, which I have used to teach myself shell programming, [[ and [ have different abilities in bash.
Quote:
Using the [[ ... ]] test construct, rather than [ ... ] can prevent many logic errors in scripts. For example, the &&, ||, <, and > operators work within a [[ ]] test, despite giving an error within a [ ] construct.
source:
Test Constructs
I have also read that = is used for an integer comparison and == is used for a string comparison, but it also says that "=" and "==" are synonyms in that same document. So the double ='s is probably unneeded I take it, but still allowed?
I have been programming in shell for a while now and am just trying to clean up my bad habits, if any to become a more efficient coder. I ended up not hard coding the variable in either, and put the command in the comparison. The script works as I wrote it, but I am getting an odd exit status error when running it in the terminal.
Thanks again for your time.
Tom
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