When we have to remodel some Bash variable worth into, for instance, uppercase, we regularly use some pipelines just like the followings: foo=”foo” foo=$(echo ${foo} | tr a-z A-Z) Enter fullscreen modeExit fullscreen mode or utilizing AWK: foo=$(echo ${foo} | awk ‘{print toupper($0)}’) Enter fullscreen modeExit fullscreen mode or with Perl: foo=$(echo ${foo} | perl…

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