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kylewlacy/prepend-append.sh

Last active February 24, 2022 09:25
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How to prepend or append to a variable in bash
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prepend-append.sh
# Prepend to a variable
export PATH=/foo${PATH:+:$PATH} # Set path to "/foo:$PATH", or "/foo" if $PATH is empty
# Append to a variable
export PATH=${PATH:+$PATH:}/foo # Set path to "$PATH:/foo", or "/foo" if $PATH is empty
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