Sams Teach Yourself Shell Programming in 24 Hours, Second Edition

Summary

In this chapter, you looked at three types of quoting and when to use them:

• Backslash

• Single quote

• Double quote

In addition, you learned several quoting rules:

• A backslash takes away the special meaning of the character that follows it.

• The character doing the quoting is removed before command execution.

• Single quotes remove the special meaning of all enclosed characters.

• Quoting regular characters is harmless.

• A single quote cannot be inserted within a single quoted string.

• Double quotes remove the special meaning of most enclosed characters.

• Quoting can ignore word boundaries.

• Different types of quoting can be combined in one command.

• Quote spaces to embed them in a single argument.

• Quote the newline to continue a command on the next line.

• Use ...