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sfgeorge/printf_templating.sh

Created February 18, 2020 12:18
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Simple UNIX templating with the printf command
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printf_templating.sh
# Create a template
echo 'I am just a lowly %s,
playing with %s and %s,
dancing in a %s and trying not to get %s.' > jolly.template
# Evaluate the template
printf "$(<jolly.template)" scoundrel sticks 'barbed wire' web caught
# Or Evaluate the template and silently set it to a shell variable
printf -v output "$(<jolly.template)" scoundrel sticks 'barbed wire' web caught
echo "$output"
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