Re: problem running executable in subdirectories

Having removed the extra "`" I end up with the following errors:

sh: -c: line 1: syntax error near unexpected token `;'
sh: -c: line 1: `;/somepath/foo'
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"Lesser problems include lack of error checking, lack of proper conversion from strings to shell literals, and possibly useless use of backticks."

By error checking do you mean that I should be using print, for example, after the script cd's into each directory as a check to see if the script is indeed cd'ing into each directory?

Could you elaborate on the latter two? Where is the script converting from strings to shell literals and what should I do to remedy it? Are the backticks simply unnecessary or do they need to be replaced by system or exec? Like I said, I'm new to this and I'm learning by trial and error.

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Re^2: problem running executable in subdirectories by ikegami (Patriarch) on Jul 07, 2010 at 20:34 UTC
Having removed the extra "`" I end up with the following errors: Please show the code. By error checking do you mean that I should be using print, `print` doesn't check for errors. I mean you should avoid running your program in the wrong directory, and the program's user probably wants to be notified of the failure to process a directory. Could you elaborate on the latter two? Your script will fail if and of the directories contains any special characters. For example, a directory with a space or a quote in its name. You're using backticks to capture the output of the program, then you discard the result. If you're trying to silence the child's STDOUT, that's ok. If not, you should be using `system`.	[reply] [d/l] [select]

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Re^2: problem running executable in subdirectories
by ikegami (Patriarch) on Jul 07, 2010 at 20:34 UTC

Having removed the extra "`" I end up with the following errors:

Please show the code.

By error checking do you mean that I should be using print,

print doesn't check for errors. I mean you should avoid running your program in the wrong directory, and the program's user probably wants to be notified of the failure to process a directory.

Could you elaborate on the latter two?

Your script will fail if and of the directories contains any special characters. For example, a directory with a space or a quote in its name.

You're using backticks to capture the output of the program, then you discard the result. If you're trying to silence the child's STDOUT, that's ok. If not, you should be using system.

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