for loop until loop and IFS separator

Others 2021-03-23 08:01:24 views: null

for loop until loop and IFS separator

for loop
- Three for loop formats
while statement
- The format of while
- Small example
until statement
- format of until
Out of the loop
IFS field separator

for loop

Three for loop formats

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while statement

The format of while

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Small example

Guess the commodity price game
Obtain a random number through the variable RANDOM
Prompt the user to guess and record the number of times, and exit the loop after the guess
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until statement

format of until

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Out of the loop

break out of the loop

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break out of the two-layer loop

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continue to abort a command in a loop, but not completely abort the entire command

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IFS field separator

Contains spaces, tabs, and newlines by default

用法
IFSOLD=$IFS
IFS=$(所需要删除的分隔符)
、、、
IFS=$IFSOLD

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Origin blog.csdn.net/xiwagogogo/article/details/114969866

for loop until loop and IFS separator

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