RE: Korn Shell and arithemetic
- From: "Lex de Haan" <lex.de.haan@xxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 23 Jun 2004 20:20:15 +0200
Tim is using command substitution (with the ` characters)
calling the bc command -- which is a brilliant programmable calculator on
Unix, with unlimited precision.
see below:
[lex@node42]$ bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
1.2 > 1.0
1
quit
[lex@node42]$
Kind regards,
Lex.
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visit my website at http://www.naturaljoin.nl
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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of
ryan.gaffuri@xxxxxxxxxxx
Sent: Wednesday, June 23, 2004 18:57
To: oracle-l@xxxxxxxxxxxxx
Subject: OT: Korn Shell and arithemetic
Tim,
what does this syntax mean?
$ if [[ "`bc << __EOF__^J1.2 > 1.0^J__EOF__`" = "1" ]]
> then
> echo yes
> else echo no
> fi
yes
$ if [[ "`bc << __EOF__^J1.2 > 1.3^J__EOF__`" = "1" ]]
> then
> echo yes
> else echo no
> fi
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