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Linux Shell Scripting Bootcamp
book

Linux Shell Scripting Bootcamp

by James K Lewis
July 2017
Beginner
208 pages
3h 7m
English
Packt Publishing
Content preview from Linux Shell Scripting Bootcamp

Using the for statement

Another way to loop is to use the for statement. It is commonly used when working with files and other lists. The general syntax of a for loop is as follows:

 for variable in list
 do
     some commands
 done

The list can be a collection of strings, or a filename wildcard, and so on. We can take a look at this in the example given in the next section.

Chapter 3 - Script 7

#!/bin/sh
#
# 5/4/2017
#
echo "script7 - Linux Scripting Book"

for i in jkl.c bob Linux "Hello there" 1 2 3
do
 echo -n "$i "
done

for i in script*             # returns the scripts in this directory
do
 echo $i
done

echo "End of script7"
exit 0

And the output on my system. This is my chap3 directory:

The next script shows how the for statement can be used with files:

Chapter 3 - ...

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Publisher Resources

ISBN: 9781787281103