Re: Re: Re: Using awk within system() or open()

open(UPTOP, 'cat /proc/uptime | awk "{ print $1 } |"');

Then $1 will be interpolated by shell, won't it? $1 should be AWK variable, neither Perl's one nor shell's one.

Comment on Re: Re: Re: Using awk within system() or open() Download Code

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Re: Re: Re: Re: Using awk within system() or open() by davorg (Chancellor) on Oct 24, 2001 at 13:13 UTC
D'oh! You're right. Try this instead: `open(UPTOP, q(cat /proc/uptime \| awk '{ print $1 } \|'));` [download] Actually, shouldn't it be: `open(UPTOP, q(cat /proc/uptime \| awk '{ print $1 }'\|));` [download] or even (avoiding the "useless use of `cat`") `open(UPTOP, q(awk '{ print $1 }' /proc/uptime \|));` [download] -- <http://www.dave.org.uk> "The first rule of Perl club is you don't talk about Perl club."	[reply] [d/l] [select]

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D'oh!

You're right. Try this instead:

open(UPTOP, q(cat /proc/uptime | awk '{ print $1 } |'));
[download]

Actually, shouldn't it be:

open(UPTOP, q(cat /proc/uptime | awk '{ print $1 }'|));
[download]

or even (avoiding the "useless use of cat")

open(UPTOP, q(awk '{ print $1 }' /proc/uptime |));
[download]

"The first rule of Perl club is you don't talk about Perl club."