The //**sort**// command in Linux and Unix-like systems is used to sort the lines of a text file or the output of a command. It can sort the lines alphabetically or numerically and can also sort in reverse order.

Here is the basic syntax for the **sort** command:

<code>
sort [options] [file]</code>
file is the name of the file you want to sort.

Here are some examples of the sort command:

1. To sort the lines of a file called "file1.txt" in alphabetical order:
<code>
$ sort file1.txt</code>

2. To sort the lines of a file called "file1.txt" in reverse order
<code>
$ sort -r file1.txt</code>
Note: The **-r** option is used to sort the lines in reverse order.

3. To sort the output of a command
<code>
$ ls -la | sort</code>
Note: The **|** symbol is used to pipe the output of one command to another. In this case it is piping the output of the **[[unix_commands:ls|ls -la]]** command to the **sort** command.

4. To sort the lines of a file numerically
<code>
$ sort -n file1.txt</code>
Note: The **-n** option is used to sort the lines numerically.

5. To ignore leading blanks while sorting
<code>
$ sort -b file1.txt</code>
Note: The **-b** option is used to ignore leading blanks while sorting

6. To sort the lines based on the second field
<code>
$ sort -k 2 file1.txt</code>
Note: The **-k** option is used to sort the lines based on a specific field