如何利用printf命令在Linux中进行对齐输出

? Linux ?,????? printf ???????????

1. ???:?? - ??
2. ???:?????,??????????????,???????????
3. ????:???????????????,??????????????????????

???????:

1. ???:

printf "%-10s %-10s\n" "Name" "Age"
printf "%-10s %-10s\n" "Alice" "25"
printf "%-10s %-10s\n" "Bob" "30"

??:

Name      Age      
Alice     25       
Bob       30       

2. ???:

printf "s s\n" "Name" "Age"
printf "s s\n" "Alice" "25"
printf "s s\n" "Bob" "30"

??:

      Name         Age
     Alice          25
       Bob          30

3. ????:

# ????????????
left_padding=5
right_padding=4

# ????
printf "%*s%*s\n" $left_padding "Name" $right_padding "Age"

# ????
printf "%*s%*s\n" $left_padding "Alice" $right_padding "25"
printf "%*s%*s\n" $left_padding "Bob" $right_padding "30"

??:

  Name   Age 
 Alice  25  
  Bob   30  

??:??????,????? %*s ?????,?? * ???????????????????????? left_padding ? right_padding ??????????