Date: Sat, 08 Aug 1998 18:45:25 +0200 From: Trifkac <code@luna.nl> To: freebsd-questions@FreeBSD.ORG Subject: shell problem do while loop Message-ID: <35CC80A5.3B00716C@luna.nl>
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Hi, Would anyone know already the answer to this problem ? The default free bsd shell gives the same problem... Trifkac ------------------- 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. Thanks, John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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