We saw this morning some examples of format strings to customize the output of the awk command using a printf statement followed by a special string. printf is also a standalone command to format text and numbers, and it relies on the printf function in the standard C language. Many other languages (Python, Java, R, ...) use these format strings.
printf (either standalone or from awk, Python, ...) can be used e.g. to pad an integer with zeros:
Or to format floating point numbers:
printf "%6.4f" 3.1415926536
3.1416
To learn more about format strings, have a look at e.g. https://www.cprogramming.com/tutorial/printf-format-strings.html
We saw this morning some examples of format strings to customize the output of the
awkcommand using a printf statement followed by a special string.printfis also a standalone command to format text and numbers, and it relies on theprintffunction in the standard C language. Many other languages (Python, Java, R, ...) use these format strings.printf(either standalone or fromawk,Python, ...) can be used e.g. to pad an integer with zeros:Or to format floating point numbers:
To learn more about format strings, have a look at e.g. https://www.cprogramming.com/tutorial/printf-format-strings.html