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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