GNU bug report logs - #22205
tee bug?

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Nacho Esteban <juanignacio.esteban <at> alliance-healthcare.net>
To: bug-coreutils <at> gnu.org
Subject: tee bug?
Date: Fri, 18 Dec 2015 14:18:07 +0100

[Message part 1 (text/plain, inline)]

Hi team,

I detected an strange behaviour of tee command that may bee a bug.

Please consider this script snippet

   VAR=""

   A() {
        VAR="This is my value"
        echo "VAR in $FUNCNAME: $VAR"
   }

   BA() {
        A | tee /tmp/kk
        echo "VAR in $FUNCNAME: $VAR"
   }

This is the output when when executed:

   $ BA
   VAR in A: This is my value
   VAR in BA:


I miss the value of VAR inside BA function.



In fact if "| tee /tmp/kk" is removed value of VAR is properly visible 
from BA function:

   VAR=""

   A() {
        VAR="This is my value"
        echo "VAR in $FUNCNAME: $VAR"
   }

   BA() {
        A
        echo "VAR in $FUNCNAME: $VAR"
   }


   $ BA
   VAR in A: This is my value
   VAR in BA: This is my value


Many thanks for your priceless effort,
Nacho


*Juan Ignacio Esteban*

Integration Architect & Security Officer | Integration Centre of Expertise


*Walgreens Boots Alliance - Enterprise IT Shared Services - Retail 
Pharmacy International & Pharmaceutical Wholesale*

Pol. Ind. San Miguel Sector 4 | Villanueva de Gállego | Zaragoza (Spain) 
| 50830

*Member of Walgreens Boots Alliance *




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company number 7073433 
Registered Office: 2 The Heights, Brooklands, Weybridge, Surrey, KT13 0NY 
Walgreens Boots Alliance Services Limited is a member of Walgreens Boots
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