Common Shell Commands
Command | Action |
---|---|
grep pattern filename | Searches the file filename for the specified pattern or regular expression. (See Chapter 8; also refer to Chapter 11, “Introduction to Perl Programming,” for more information on regular expressions.) |
less filename | Views the contents of filename one screen at a time. The more command is a synonym for less. (See Chapter 8.) |
cat filename | Displays (catenates) the contents of filename. cat is normally used with redirection or pipes to send a file’s contents through another command. (See Chapter 8.) |
wc filename | Displays the number of words, lines, and characters in filename. (See Chapter 8.) |
diff file1 file2 | Compares the contents of file1 with the contents of file2 and then displays the differences between ... |
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