Date: Sat, 9 May 1998 21:52:21 -0400 (EDT) From: "John W. DeBoskey" <jwd@unx.sas.com> To: freebsd-hackers@FreeBSD.ORG Subject: Unexpected behaviour from pdksh. Comments? Message-ID: <199805100152.AA24180@mozart>
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Hi, The following is on 3.0-CURRENT using pdksh. Given the following sample Korn Shell script: export FOO=foo echo $FOO echo bar | while read var; do export FOO=$var echo $FOO done echo $FOO The output is: foo bar foo where I was expecting: foo bar bar If I put the value 'bar' in a file and change the while loop to: echo bar > varfile while read var; do export FOO=$var echo $FOO done < varfile I get the expected reult with the above. It seems that the pipe '|' is causing the 'while read var' to execute in a subshell. Does anyone know of a way to make this work the way I am expecting it to? fyi: this seems to work ok under hpux 9.05 & 10.20 and SunOS 5.6... Thanks, John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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