Path: utzoo!attcan!uunet!wash08!txr98 From: txr98@wash08.UUCP (Timothy Reed) Newsgroups: comp.unix.questions Subject: Re: what's the use of "{ list }" in /bin/sh? Message-ID: <147@wash08.UUCP> Date: 7 Jul 88 21:33:31 GMT References: <23590@teknowledge-vaxc.ARPA> <6954@sigi.Colorado.EDU> Reply-To: txr98@wash08.UUCP (Timothy Reed) Organization: American Chemical Society, Washington, DC Lines: 20 In article <6954@sigi.Colorado.EDU> wu@spot.Colorado.EDU (WU SHI-KUEI) writes: >In article <23590@teknowledge-vaxc.ARPA> mkhaw@teknowledge-vaxc.ARPA (Mike Khaw) writes: >> >>Under what circumstances is this useful (i.e., why whould one want to >>put braces around a list of commands)? > >[ -r "$filename" ] || { echo "Cannot open $filename for reading" ; exit 1 } >is another way of writing Is "[ -r "$filename" ] || { echo "error" ; exit 1 }" faster than "if [ -r filename ] ; then echo "error" ; exit ; fi" ??? Thanks! ~ ~ ~ ~ ~ ~ "/Timothy/Reed/American/Chemical/Society" 29 lines, 924 characters