dap@aber-cs.UUCP (Dave Price) (01/20/87)
Can someone please tell me what is wrong with the following
apparently faulty IF in csh.
if ( \{ /bin/true \} ) echo "hello"
man csh expression description paragraph says you
can use commands in {} however all the above
produces is IF syntax error.....
Dave Price
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JANET: dap@uk.ac.aber.cs PHONE: +44 970 3111 x 3267
Post: University College of Wales, Penglais, Aberystwyth, UK, SY23 3BZ.
--
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Post: University College of Wales, Penglais, Aberystwyth, UK, SY23 3BZ.ballou@brahms.Berkeley.EDU (Kenneth R. Ballou) (01/23/87)
In article <15@aber-cs.UUCP> dap@aber-cs.UUCP (Dave Price) writes: >Can someone please tell me what is wrong with the following >apparently faulty IF in csh. > > if ( \{ /bin/true \} ) echo "hello" > >man csh expression description paragraph says you >can use commands in {} however all the above >produces is IF syntax error..... The correct syntax is if { /bin/true } echo "hello" The parentheses are unnecessary. -------- Kenneth R. Ballou ARPA: ballou@brahms.berkeley.edu Department of Mathematics UUCP: ...!ucbvax!brahms!ballou University of California Berkeley, California 94720
jsdy@hadron.UUCP (Joseph S. D. Yao) (02/06/87)
In article <801@cartan.Berkeley.EDU> ballou@brahms.Berkeley.EDU (Kenneth R. Ballou) writes: >In article <15@aber-cs.UUCP> dap@aber-cs.UUCP (Dave Price) writes: >>Can someone please tell me what is wrong with the following >> if ( \{ /bin/true \} ) echo "hello" >The correct syntax is > if { /bin/true } echo "hello" >The parentheses are unnecessary. Ken is, of course, correct, albeit nonresponsive. The answer to the question is that the {}'s should not be quoted. The ()'s may be in or not at your option. You'll need them if you add any and'ed or or'ed expressions. -- Joe Yao hadron!jsdy@seismo.{CSS.GOV,ARPA,UUCP} jsdy@hadron.COM (not yet domainised)