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edit approved May 25, 2016 at 19:00
psmears
edit approved May 25, 2016 at 19:00
psmears
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exec and tee to the logfile.: explain thisthese bash commands

I saw this at the top of my bash script file.:

export LOGFILE=$LOGDIRECTORY/${SCRIPT_NAME}.log exec > >(tee $LOGFILE) exec 2>&1

What does it do? What are two exec processes doing here? I can realize that keeping it like this, all the output of the execution of the script is piped to the $LOGFILE but I wanted to understand from the perspective of the exec statements.

exec and tee to the logfile. explain this bash commands

I saw this at the top of my bash script file.

export LOGFILE=$LOGDIRECTORY/${SCRIPT_NAME}.log exec > >(tee $LOGFILE) exec 2>&1

What does it do? What are two exec processes doing here? I can realize that keeping it like this, all the output of the execution of the script is piped to the $LOGFILE but I wanted to understand from the perspective of the exec statements.

exec and tee to the logfile: explain these bash commands

I saw this at the top of my bash script file:

export LOGFILE=$LOGDIRECTORY/${SCRIPT_NAME}.log exec > >(tee $LOGFILE) exec 2>&1

What does it do? What are two exec processes doing here? I realize that keeping it like this, all the output of the execution of the script is piped to $LOGFILE but I wanted to understand from the perspective of the exec statements.

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Senthil Kumaran
Senthil Kumaran
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exec and tee to the logfile. explain this bash commands

I saw this at the top of my bash script file.

export LOGFILE=$LOGDIRECTORY/${SCRIPT_NAME}.log exec > >(tee $LOGFILE) exec 2>&1

What does it do? What are two exec processes doing here? I can realize that keeping it like this, all the output of the execution of the script is piped to the $LOGFILE but I wanted to understand from the perspective of the exec statements.