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classx
classx

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Disable bash script output, but save to file log

#linux #bash

Option 1 

#!/bin/bash sudo apt install -y package_name | tee -a /tmp/app.log >/dev/null sudo apt install -y package_name1 | tee -a /tmp/app.log >/dev/null sudo apt install -y package_name2 | tee -a /tmp/app.log >/dev/null
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Option 2

disable all output to tty but save to file

#!/bin/bash exec 1> >(tee -a /tmp/app.log >/dev/null) sudo apt install -y package_name sudo apt install -y package_name1 sudo apt install -y package_name2
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Option 3

enable all output to tty and save to file

#!/bin/bash exec 2> >(tee -a /tmp/app.log >&2) > >(tee -a /tmp/app.log") sudo apt install -y package_name sudo apt install -y package_name1 sudo apt install -y package_name2
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As function

function __application_log(){ if [ "${__verbose_mode}" == "no" ]; then exec 1> >(tee -a /tmp/app.log >/dev/null) else exec 2> >(tee -a /tmp/app.log >&2) > >(tee -a /tmp/app.log") fi }
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