Date: Fri, 4 Feb 2005 15:47:36 -0600 From: "antenneX" <antennex@swbell.net> To: "Steven Friedrich" <FreeBSD@insightbb.com>, <freebsd-questions@freebsd.org> Subject: Re: An AWK question Message-ID: <007301c50b03$2434ba90$0200000a@SAGEAME> References: <005c01c50aed$d105c3b0$0200000a@SAGEAME> <200502041523.59163.FreeBSD@insightbb.com>
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----- Original Message ----- From: "Steven Friedrich" <FreeBSD@insightbb.com> To: <freebsd-questions@freebsd.org>; "antenneX" <antennex@swbell.net> Sent: Friday, February 04, 2005 2:23 PM Subject: Re: An AWK question > On Friday 04 February 2005 02:14 pm, antenneX wrote: > > ---> FBSD-4.10p2 > > > > I have a script that tells me when a mailbox exceeds 2MB. Using it for > > another purpose. how can I modify this script to tell me when a file is > > LESS than a certain size? > > > > --------------------------------------------- > > #!/bin/sh > > > > #AWK=/usr/bin/awk > > #FILE=/file/size/to/check > > #LS=/bin/ls > > #SIZE=2048 # (2048 = 2MB) > > > > #if [ `${LS} -s ${FILE} | ${AWK} '{ print $1 }'` -gt ${SIZE} ]; then > > # echo File ${FILE} is ABOVE normal | mail -s "Alert: Check the file" > > #fi > > --------------------------------------------- > > > > Thanks, and.... > > > > Best regards, > > > > Jack L. Stone > > > > _______________________________________________ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to > > "freebsd-questions-unsubscribe@freebsd.org" > Jonathen's correct. It's not an awk question. It's actually being evaluated by > test. see man test )test is also invoked when you see [ some equation ] (you > need the space at least on the inside of [ and ], perhaps on the outsides > too. > #if [ `${LS} -s ${FILE} | ${AWK} '{ print $1 }'` -lt ${SIZE} ]; then > # echo File ${FILE} is BELOW normal | mail -s "Alert: Check the file" > #fi > > awk is just being used to get the first field from ls -s, which is the size... > -- No wonder I couldn't make sense out of it looking only in man GAWK(1). Now, it's very simple -- thanks a lot! Jack
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