Thanks... that ought to be enough to let me figure it out. FWIW, the original code looked like this, and it works. (Which are certainly not to say that it couldn't be cleaner -- I'm only just starting with bash scripting.)
You've made two fundamental errors in such a way that they cancel each other out and work correctly here. I'm impressed
"true" and "false" are not special values to bash. They're just strings.
But...
As it happens, there are external utilities named true and false. true always returns success, and false always returns error.
Also, the code if program arguments ... is a way of checking the result of an external program. If $VARNAME was 'rm -Rf /home/myusername/', if $VARNAME would run the command rm -Rf /home/myusername/. If 'rm' succeeded in deleting your home directory, it would return a zero value, which the if-statement would consider a boolean 'true'. If it failed for some reason and returned a nonzero code, that would be a boolean 'false'.
So you've been converting the strings true and false into zero or nonzero program return codes, by running external programs that happen to be named true and false, then checking their result. Rather the long way around!
Seeing the code, if your filenames and arguments will never contain spaces, you can make this much much simpler:
Last edited by Corona688; 02-24-2012 at 01:15 PM..
Hi,
I have a shell script Scp_1.sh for which I have to pass 2 arguments to run.
I have another script Scp_2.sh which in turns calls script Scp_1.sh inside.
How do I make Scp_1.sh script to read arguments automatically from a file, while running Scp_2.sh?
--
Weblogic Support (4 Replies)
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hi everobody
kindly consider the following
in tclsh
I understand that we can do the following
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Hello
Please i want to pass parameter (the string s) to the shell script:
Quote:
String s="Hello";
Process process = Runtime.getRuntime().exec("sh script1.sh");
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Hi Gurus,
Need some help with the shell scripting here.
#!/bin/ksh
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if
then
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Hi,
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sh myScript.sh abc
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I found something insteresting when I tested passing arguments into my scripts.
My scripts is as below.
% cat passarg.env
#!/bin/csh
echo "passarg: argv = $argv argv = $argv"
passarg1.env $*
% cat passarg1.env
#!/bin/csh
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