Toralf Förster wrote:
Bash Version: 3.2
Patch Level: 33
Release Status: release
Description:
I'm wondering why in the example (see below) the right side is prefixed
with a '\' wheras the left side is unchanged.
Repeat-By:
[EMAIL PROTECTED] ~ $ echo "1 2 3 4" | while read a b c d; do [[ "$a" = "$b" || "$a" = "$c" ||
"$a" = "$d" ]] && echo oops; done
+ read a b c d
+ echo '1 2 3 4'
+ [[ 1 = \2 ]]
+ [[ 1 = \3 ]]
+ [[ 1 = \4 ]]
+ read a b c d
++ echo -ne '\033]0;[EMAIL PROTECTED]:~\007'
Because the ==/!=/= operators are defined to match the rhs as a pattern
unless it's quoted. You quoted the original string, and the `set -x'
output is supposed to be re-usable as input, so the trace output is
quoted appropriately.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
Chet Ramey, ITS, CWRU [EMAIL PROTECTED] http://cnswww.cns.cwru.edu/~chet/