On 11/12/2010 11:17 AM, Harald van Dijk wrote: > ( > : > : > : > : > : > ) >test-$LINENO > > should write to file test-1, not test-7, even though the only word is on > line 7. bash gets this wrong, pdksh gets this almost right. Umm - there was more than one word in that example (each : in the subshell is a word). But I agree that the subshell command itself started on line 1, but the word containing $LINENO is on line 7. There are _so many_ variations on what this example would do that it's hard to say that any one version is definitively correct. In general, the standard tends to favor the ksh93 interpretation of things; but on your example, it touches the file test-6 (not test-7 nor test-1). All I can see in the standard is: "Set by the shell to a decimal number representing the current sequential line number (numbered starting with 1) within a script or function before it executes each command." with no hint as to whether LINENO auto-increments over the number of newlines encountered while parsing that command. -- Eric Blake eblake@xxxxxxxxxx +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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