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Newsgroups: comp.lang.java.programmer
Date: Tue, 28 Aug 2012 17:10:35 -0700 (PDT)
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Subject: Re: trying to redirect both std out and err to a file together and still err to a separate file
From: Lew <lewbloch@gmail.com>
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Xref: csiph.com comp.lang.java.programmer:18375

(unknown) wrote:
> I tested your suggestion with some java [sic] code and it works nicely

Whose suggestion about what?

>  comp.unix.shell: trying to redirect both std out and err to a file toget=
her
> and still err to a separate file =20

This is easy to do with shell constructs.

> import java.util.Locale;
> import java.util.Date;
> import java.text.DateFormat;
> =20
> // __=20
>=20
> public class Test{
>=20
>  public static void main(String[] args){
>   DateFormat DF =3D DateFormat.getDateInstance(DateFormat.FULL, Locale.FR=
ANCE);

http://www.oracle.com/technetwork/java/codeconv-138413.html

You should follow the coding conventions, at least mostly.

> // __ std out

>   System.out.println("// __ out.println: |" + DF.format(new Date()) + "|"=
);

What are you trying to accomplish here?

>   DF =3D DateFormat.getDateInstance(DateFormat.FULL, Locale.CHINESE);
>=20
> // __ std err
>=20
>   System.err.println("// __ err.println: |" + DF.format(new Date()) + "|"=
);
>=20
> // __ Exception in thread "main" java.lang.NullPointerException
>=20
>   DF =3D null;
>   DF.format(new Date());

What are you trying to accomplish here?

>  }
> }
>=20
> /*
> rm -f *.log
>=20
> export _DT=3D`date +%Y%m%d%H%M%S_%s`
> echo ${_DT}
>=20
> (javac Test.java 2>&1 >&3 | tee ${_DT}"_errc.log" >&3) 3> ${_DT}"_errc.lo=
g"

Your use of quotation marks here is superfluous.

I would have to review this shell command, but it looks weird=20
to me. I don't normally go for such outr=E9 file-descriptor manipulation=20
so it will take time and effort to sort all that stuff out.

> (java Test 2>&1 >&3 | tee ${_DT}"_err.log" >&3) 3> ${_DT}"_err_out.log"
>=20
> ls -l *.log
> cat *_err.log
> cat *_err_out.log
> */

Glad it did what you want, though, whatever that was.
Hard to tell when the message is not in its thread context.

--=20
Lew