Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!ncrlnk!ncrcae!hubcap!gatech!bloom-beacon!mit-eddie!uw-beaver!cornell!rochester!pt.cs.cmu.edu!PLAY.MACH.CS.CMU.EDU!bsy
From: bsy@PLAY.MACH.CS.CMU.EDU (Bennet Yee)
Newsgroups: comp.unix.wizards
Subject: Re: End-of-file character (was script > mumble)
Message-ID: <3281@pt.cs.cmu.edu>
Date: 11 Oct 88 22:21:18 GMT
Article-I.D.: pt.3281
References: <4975@saturn.ucsc.edu> <503@quintus.UUCP> <1503@fireball.cs.vu.nl>
Sender: netnews@pt.cs.cmu.edu
Organization: Cranberry Melon
Lines: 42

In article <1503@fireball.cs.vu.nl> maart@cs.vu.nl (Maarten Litmaath) writes:
>In article <503@quintus.UUCP> ok@quintus.UUCP (Richard A. O'Keefe) writes:
>\... here's some source code:
>[C source deleted]
>
>People, what happened to good old shell script programming?
>
>BSD:
>sh -c 'stty all 2> /tmp/stty.$$; set `tail -1 /tmp/stty.$$`;
>	shift; shift; echo $9; /bin/rm /tmp/stty.$$'
>SysV:
>sh -c 'stty -a | sed -e "s/.*eof = \([^;]*\).*/\1/" -e q'
>
>BTW, this shows the SysV stty(1) command is favorable in one way: if stdout
>isn't a tty, try stderr or stdin! (So we won't need the stupid temp file.)


No no no no.  With even BSD stty, you can do it all in one line w/o stupid
tmp files:

  sh -c 'set `stty all 2>&1 >/dev/tty | tail -1`; shift; shift; echo $9'

or, if you don't like the tail, you could also use

  sh -c 'stty all 2>&1 > /dev/tty | awk "{ last = \$NF } END { print last }"'

What _did_ happen to good olde shell programming?

-bsy








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