July 2017
Beginner
208 pages
3h 7m
English
Content preview from Linux Shell Scripting Bootcamp
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Comparison operators for strings
The comparison for strings are different than for numbers. Here is a partial list:
|
Operator |
Explanation |
|---|---|
|
|
This stands for equal to |
|
|
This stands for not equal to |
|
|
This stands for greater than |
|
|
This stands for less than |
Now let's take a look at Script 3:
Chapter 2 - Script 3
1 #!/bin/sh 2 # 3 # 6/13/2017 4 # 5 echo "script3" 6 7 # String variables 8 str1="Kirk" 9 str2="Kirk" 10 str3="Spock" 11 str3="Dr. McCoy" 12 str4="Engineer Scott" 13 str5="A" 14 str6="B" 15 16 echo str1=$str1 str2=$str2 str3=$str3 str4=$str4 17 18 if [ "$str1" = "$str2" ] ; then 19 echo str1 equals str2 20 else 21 echo str1 does not equal str2 22 fi 23 24 if [ "$str1" != "$str2" ] ; then 25 echo str1 does not equal str2 26 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.