- Can I suppress the error/warning /tmp/x.ksh[28]: getopts: y bad option(s)? I managed to do so doing while getopts kmg size_unit 2>/dev/null, is that the only way to do so?
Also, doesn't the following lines supposed to be executed if I run the script with the wrong command line option, i.e. /tmp/x.ksh -y, or if I run the script without any command line option, i.e. /tmp/x.ksh?
I have the if-then clause because the *) size="GB" line does not work like I expect it to. I've also tried ?) size="GB" or \?) size="GB" and it does not make any difference.
Code:
*) size="GB"
header="Filesystem GBytes Used Avail Capacity Mount"
echo "${header}" > ${tmp_header}
;;
esac
done
if [[ -z "${size}" ]] ; then
size="GB"
header="Filesystem GBytes Used Avail Capacity Mount"
echo "${header}" > ${tmp_header}
fi
Feedback will be much appreciated. Thanks in advance.
- Can I suppress the error/warning /tmp/x.ksh[28]: getopts: y bad option(s)? I managed to do so doing while getopts kmg size_unit 2>/dev/null, is that the only way to do so?
No, just put a colon in front of the option string: :kmg.
You need to check explicitly for no arguments.
I don't understand the last question, I get size=GB when I run your script with -y ...
Last edited by radoulov; 10-06-2011 at 11:37 AM..
Reason: Corrected: semicolon -> colon.
No, just put a colon in front of the option string: :kmg.
You need to check explicitly for no arguments.
I don't understand the last question, I get size=GB when I run your script with -y ...
Hi radoulov,
Thanks for your response.
I did what you suggested so now the getopts line looks like
Code:
while getopts :kmg size_unit
Now when I run /tmp/x.ksh -y, it runs the default that I want it to which is this one below here, i.e. size=GB is if I supplied an invalid option that is NOT k, m or g. However when I run /tmp/x.ksh without a command line option, it does not default to size=GB. Does that mean I have to do a separate check for when I do not specify a command line argument?
However when I run /tmp/x.ksh without a command line option, it does not default to size=GB. Does that mean I have to do a separate check for when I do not specify a command line argument?
Yes, as I already said you need to add code to handle that case.
Hint:
Also, why is size_unit showing ?, I thought it is supposed to parse to k,m or g but it is showing the ? character instead in all cases? WHY? -
Because:
Code:
When the end of options is encountered, getopts exits with a return value greater than zero. OPTIND is
set to the index of the first non-option argument, and name is set to ?.
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