Shulou(Shulou.com)06/03 Report--

Format:

printf format [string]

printf format parameter

Because printf behavior is defined by the POSIX standard, scripts using printf are more portable than those using echo.

Procedure:

#!/ bin/bash

printf "%-10s %-8s %-4s\n" Name Sex Weight kg

printf "%-10s %-8s %-4.2f\n" Guo Jingnan 66.1234

printf "%-10s %-8s %-4.2f\n" Yang Guonan 48.6543

printf "%-10s %-8s %-4.2f\n" Guo Fu Female 47.9876

# format-string is double quotes

printf "%d %s\n" 1 "abc"

#Single quotes work just like double quotes

printf '%d %s\n' 1 "abc"

Run Results:

Name Sex Weight kg

Guo Jingnan 66.12

Yang Guo Male 48.65

Guo Fu Female 47.99

1 abc

1 abc

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