tee command within variable Post: 302445006

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Top Forums UNIX for Dummies Questions & Answers tee command within variable Post 302445006 by kostasch on Friday 13th of August 2010 11:39:57 AM

08-13-2010

Registered User

tee command within variable

Hello
If anybody knows something about the following please help me.

I am using HP unix.
In a script called test.txt i have the following command

echo ok | tee test1.txt

It works fine.It prints ok on the screen and creates the file test1.txt and puts in the file the "ok".

In the same script i want to do the following.Instead of the command
echo ok | tee test1.txt , i want to use :

myvariable=| tee test1.txt
echo ok $myvariable

But the above does not work correct.It prints ok on the screen and creates the file test1.txt .But the file test1.txt is emtpy(zero bytes).

I have tried the following commands but none worked for me.
myvariable
#1
myvariable='| tee test1.txt'
echo ok $myvariable

#2
myvariable=| tee test1.txt
echo "ok $myvariable"

#3
myvariable='| tee test1.txt'
echo "ok $myvariable"

#4
myvariable=| tee test1.txt
echo "ok ${myvariable}"

#5
myvariable='| tee test1.txt'
echo "ok ${myvariable}"

#6
myvariable="| tee test1.txt"
echo "ok ${myvariable}"

#7
myvariable=| tee test1.txt
eval echo ok \${$myvariable}

#8
myvariable="| tee test1.txt"
eval echo ok \${$myvariable}

Thank you for your time.

kostasch

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LEARN ABOUT SUSE

tee

TEE(1)								   User Commands							    TEE(1)

NAME

       tee - read from standard input and write to standard output and files

SYNOPSIS

       tee [OPTION]... [FILE]...

DESCRIPTION

       Copy standard input to each FILE, and also to standard output.

       -a, --append
	      append to the given FILEs, do not overwrite

       -i, --ignore-interrupts
	      ignore interrupt signals

       --help display this help and exit

       --version
	      output version information and exit

       If a FILE is -, copy again to standard output.

AUTHOR

       Written by Mike Parker, Richard M. Stallman, and David MacKenzie.

REPORTING BUGS

       Report tee bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>

COPYRIGHT

       Copyright (C) 2009 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The  full  documentation  for tee is maintained as a Texinfo manual.  If the info and tee programs are properly installed at your site, the
       command

	      info coreutils 'tee invocation'

       should give you access to the complete manual.

GNU coreutils 7.1						     July 2010								    TEE(1)