From: http://codingstandards.iteye.com/blog/1198098

In Java

class Formatter

参见：http://download.oracle.com/javase/6/docs/api/java/util/Formatter.html#syntax

String.format

static String     format(String format, Object... args)
          使用指定的格式字符串和参数返回一个格式化字符串。

参见：String.format函数使用方法介绍 http://blog.csdn.net/andycpp/article/details/1749700

System.out.printf

参见：http://www.java2s.com/Code/JavaAPI/java.lang/System.out.printf.htm

In Bash

printf

如果你想对printf命令更深入的了解，参见 http://wiki.bash-hackers.org/commands/builtin/printf

打印换行

示例来自 http://ss64.com/bash/printf.html

 # Use \n to start a new line
$ printf "Two separate\nlines\n"          
Two separate
lines

[root@jfht ~]# printf "Two separate\nlines\n" 
Two separate
lines
[root@jfht ~]# echo "Two separate\nlines\n"      
Two separate\nlines\n
[root@jfht ~]# echo -e "Two separate\nlines\n" 
Two separate
lines

[root@jfht ~]# echo -n -e "Two separate\nlines\n" 
Two separate
lines
[root@jfht ~]#

用0填充（Zero Padding）

技巧来自 Zero Padding in Bash  http://jonathanwagner.net/2007/04/zero-padding-in-bash/

创建从1到31为名的目录

for ((x=1;x<=31;x+=1)); do mkdir $x; done

一位数字前面加0

for ((x=1;x< =31;x+=1)); do mkdir `printf "%02d" $x`; done

例子来自 http://ss64.com/bash/printf.html

# Echo a list of numbers from 1 to 100, adding 3 digits of Zero padding
# so they appear as 001, 002, 003 etc:
$ for ((num=1;num<=100;num+=1)); do echo `printf "%03d" $num`; done

设置打印宽度、用空白填充

示例来自 http://linuxconfig.org/bash-printf-syntax-basics-with-examples

#!/bin/bashdivider===============================
divider=$divider$dividerheader="\n %-10s %8s %10s %11s\n"
format=" %-10s %08d %10s %11.2f\n"width=43printf "$header" "ITEM NAME" "ITEM ID" "COLOR" "PRICE"printf "%$width.${width}s\n" "$divider"printf "$format" \
Triangle 13  red 20 \
Oval 204449 "dark blue" 65.656 \
Square 3145 orange .7

[zcm@bash #86]$./a.shITEM NAME   ITEM ID      COLOR       PRICE
===========================================Triangle   00000013        red       20.00Oval       00204449  dark blue       65.66Square     00003145     orange        0.70
[zcm@bash #87]$