Re: OT: Korn Shell and arithemetic
- From: tim@xxxxxxxxxxxxx
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 23 Jun 2004 12:03:33 -0600 (MDT)
It is korn shell. The IF condition is testing output from the "bc" command,
which is actually performing the arithmetic test, outputting "1" if true or "0"
if false. The difficult part is the "^J", which represents the NEWLINE
character and can be constructed using CTRL-V/CTRL-J when editing using "vi".
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From: ryan.gaffuri@xxxxxxxxxxx
To: oracle-l@xxxxxxxxxxxxx
Subject: OT: Korn Shell and arithemetic
Date: Wed, 23 Jun 2004 17:57:12 +0000
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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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