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Full Discussion: read after pipe problem OSX10.4
Top Forums Shell Programming and Scripting read after pipe problem OSX10.4 Post 77379 by relyveld on Thursday 7th of July 2005 03:18:42 PM
Old 07-07-2005
Thanks for the replies, Perderabo and R2007.

Perderabo, what is strange is that when I start a different terminal, or
a different shell, they all behave the same. I tried bash, tcsh, csh and sh.
I expect it has to do with the OSX darwin or BSD system. Also commands
like ls and tar are different. It took me some time to get colors enabled
and app-defaults installed right for keybord shortcuts. The csh results:

$ csh
[d213-102-60-49:~] relyveld% echo "abc cde efg" | read k l ; echo "k=$k, l=$l"
csh: k: Undefined variable.

Finaly, I tried zsh and this one works! But I don't know zsh and all my
scripts are ksh based..

zsh:
d213-102-60-49% zsh
which read
read: shell built-in command
d213-102-60-49% exit


ksh:
$ which read
/usr/bin/read


$ zsh
d213-102-60-49% echo "abc cde efg" | read k l ; echo "k=$k, l=$l"
k=abc, l=cde efg


Test result (ksh):

$ print "abc cde efg" | { read k l ; print "k=$k, l=$l" ; }
k=, l=


Greetings, William.
 

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LEARN ABOUT DEBIAN

surfraw-update-path

SURFRAW-UPDATE-PATH(1)					User Contributed Perl Documentation				    SURFRAW-UPDATE-PATH(1)

NAME

       surfraw-update-path - updates PATH in shell config files

SYNOPSIS

       surfraw-update-path [-add] [-remove] [-check] [-sys] [-all] [-help] [-shell=SHELL]

DESCRIPTION

       surfraw-update-path adds the surfraw elvi directory (/usr/lib/surfraw) to your PATH in your shell's config file.

       Currently it supports bash, sh, csh, tcsh, ash, dash, ksh, pdksh, zsh, rc, and es

       Don't forget to login again or source your login files for it to take effect.

OPTIONS

       -check
	   Checks to see if the surfraw config code is present.  This is the default.

       -add
	   Adds the surfraw config code.

       -remove
	   Removes the surfraw config code

       -sys
	   Updates the system-wide shell config instead of the user.  Must be done as root.

       -shell=SHELL
	   Selects the shell to configure. Defaults to the value of the $SHELL environment variable.

	   Currently supported shells are:

	   sh, ash, bash, dash, csh, tcsh, ksh, pdksh, zsh, rc, and es.

       -all
	   Attempts to configure the startup files for all known shells

       -help
	   Gives a usage message

RETURN VALUE

       -check returns 0 if the surfraw code is present in the file, 1 if it is not found, or 2 on error.

       All other options return 0 on success, or 2 on error.

ENVIRONMENT

       SHELL
	   Used to determine which shell to configure, if -shell is not given.

       HOME
	   Used to find users config files.

       ENV Used by posix-compliant shells to specify a startup rc file.

       ZDOTDIR
	   Used to find user config files for zsh. If not set, defaults to HOME.

SEE ALSO

       surfraw(1), sh(1), ash(1), bash(1), dash(1), csh(1), tcsh(1), ksh(1), pdksh(1), zsh(1), rc(1), es(1)

AUTHOR

       Ian Beckwith <ianb@erislabs.net>

perl v5.12.4							    2011-07-12						    SURFRAW-UPDATE-PATH(1)
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