Perl Guru Forums: Perl Programming Help: Beginner: Why doesn't this work?

CGI/Perl Guide | Learning Center | Forums | Advertise | Login

Site Search: in


	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Beginner:
Why doesn't this work?

aixrus
New User

May 21, 2010, 10:51 AM

Post #1 of 6 (1350 views)

Why doesn't this work?	Can't Post

At the command line (aix):

# bootinfo -s hdisk1
34715

In perl:

$size=`bootinfo -s hdisk1`;

bootinfo: A flag requires a parameter: s
usage: bootinfo { -a | -b | -B device | -c | -d | -e | -f device |
-g device | i | -k | -K | -L | -m | -M | -o disk | -p | -q device |
-Q number | -r | -s diskname [ -P 0 ] | -t | -T | -v | -w | -y | -z }

???

toolic
User

May 21, 2010, 4:52 PM

Post #2 of 6 (1341 views)

Re: [aixrus] Why doesn't this work? [In reply to]	Can't Post

Just a guess... maybe the bootinfo from the command line is a different executable from that in the Perl script.

I am unfamiliar with AIX and bootinfo, but in unix-like OS's, I would do this at the command line:

Code

which bootinfo

and I would inspect the PATH variable inside the Perl code:

Code

print $ENV{PATH};

aixrus
New User

May 24, 2010, 11:56 AM

Post #3 of 6 (1314 views)

Re: [toolic] Why doesn't this work? [In reply to]	Can't Post

Well, no it is finding the command. So it isn't a path issue.

The error has to do with the flag not getting an expected paramter passed to it.

Here is the code:

else {
$size=`bootinfo -s hdisk1`;
}

Here is the error again run through perl:

bootinfo: A flag requires a parameter: s
usage: bootinfo { -a | -b | -B device | -c | -d | -e | -f device |
-g device | i | -k | -K | -L | -m | -M | -o disk | -p | -q device |
-Q number | -r | -s diskname [ -P 0 ] | -t | -T | -v | -w | -y | -z }

Here is the output at the command line:

#bootinfo -s hdisk1
34715

7stud
Enthusiast

May 24, 2010, 12:37 PM

Post #4 of 6 (1310 views)

Re: [aixrus] Why doesn't this work? [In reply to]	Can't Post

Quote

Well, no it is finding the command

Yeah, but the idea is *which* command is it finding. You can have 50,000 executables on your computer called bootinfo.

l4teral
User

May 25, 2010, 2:25 PM

Post #5 of 6 (1286 views)

Re: [7stud] Why doesn't this work? [In reply to]	Can't Post

you can try substituting backticks for system(" ");

...that's fixed quirks like that for me, in the past.

rovf
Veteran

May 26, 2010, 7:07 AM

Post #6 of 6 (1281 views)

Re: [aixrus] Why doesn't this work? [In reply to]	Can't Post

What shell are you using?

Could it be that bootinfo in your shell is an alias or a function?

Search for (options)

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives