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Shell Programming and Scripting

control sub-shells

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# 8  
Old 07-14-2008
Quote:
Originally Posted by MarkZWEERS
I've always learned to run scripts with a '.' (so that it runs in the current shell), and to run binairies (executables) without, or with ./ if the path is not set in the .bashrc or .kshrc
I would consider always running scripts with a '.' to be a bad habit as you don't want the environment of your current shell to be modified all the time by any scripts you run.

Using ./ however is a good habit because it explicitly avoids running scripts in your PATH that you are not aware of. It is recommended over having '.' in your PATH because that could be risky if someone happened to drop a trojan called, for example, ls in your home directory, which would be run instead without you even noticing.

Quote:
Originally Posted by MarkZWEERS
ps: to run a script, one should make it executable by "chmod 777"

pps: '750' also works
chmod 777 is a bad idea, as you are granting world write access. 750 or 755 are much more sensible.
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