Download Learning the bash Shell, 3rd Edition

Transcript
Special Characters and
Quoting
The characters <, >, |, and & are four examples of special
characters that have particular meanings to the shell. The
wildcards we saw earlier in this chapter (*, ?, and [...])
are also special characters.
Table 1-6 gives the meanings of all special characters
within shell command lines only. Other characters have
special meanings in specific situations, such as the
regular expressions and string-handling operators that
we'll see in Chapter 3 and Chapter 4.
Table 1-6. Special characters
Character Meaning
See
chapter
~
Home directory
Chapter 1
`
Command
(archaic)
substitution
86
Chapter 4