ERR trap
in [Shell]
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From: John Kelly on 13 Aug 2010 14:34 On Fri, 13 Aug 2010 19:01:49 +0100, Eric <eric(a)deptj.eu> wrote: >On 2010-08-13, pk <pk(a)pk.invalid> wrote: >> John Kelly wrote: >> >>>>> ... because it reports the trap line, not what caused the trap. >> Perhaps if you use single quotes it may work better. >Actually, that's what I said, except the only responders to my post didn't >read it properly - I have re-inserted the bit from the original post >that makes it make sense! ("it" in the inserted bit is the single-quoted >version which was abve that). > >Now it appears that some shell (pdksh?) plays around with its context >before executing the trap command so that LINENO is set to zero - somebody >trying to be too clever, I guess. As far as I can see, it is a _bug_ . If I had tried it on bash first I probably would not have posted, since it works on bash. But I was using the Interix ksh > The version here contains the features of the ksh88 version, > dated 11/16/88. and I was puzzled by its behavior. I fixed it up by putting a conditional in my script to set the ERR trap only if running bash. -- Web mail, POP3, and SMTP http://www.beewyz.com/freeaccounts.php |