ProgrammingKnowledge2 | Ls Command in Linux (List Files and Directories) @ProgrammingKnowledge2 | Uploaded 2 months ago | Updated 1 day ago
The `ls` command in Linux is used to list files and directories within the file system. Here are some common usages and options:

### Basic Usage

```bash
ls
```

Lists files and directories in the current directory.

### List with Details

```bash
ls -l
```

Displays detailed information about each file and directory, including permissions, number of links, owner, group, size, and modification date.

### List All Files (Including Hidden Files)

```bash
ls -a
```

Shows all files, including hidden files (those starting with a dot).

### Human-Readable Sizes

```bash
ls -lh
```

Displays file sizes in human-readable format (e.g., KB, MB).

### Recursive Listing

```bash
ls -R
```

Lists files and directories recursively, showing the content of all subdirectories.

### Sorting by Modification Time

```bash
ls -lt
```

Sorts files by modification time, with the newest files listed first.

### Sorting by File Size

```bash
ls -lS
```

Sorts files by size, with the largest files listed first.

### Combining Options

```bash
ls -lah
```

Combines multiple options to show detailed information about all files, including hidden files, in a human-readable format.

### Example Output

```bash
$ ls -lah
total 36K
drwxr-xr-x 5 user user 4.0K Jul 17 14:32 .
drwxr-xr-x 20 user user 4.0K Jul 17 14:32 ..
-rw-r--r-- 1 user user 220 Jul 17 14:32 .bash_logout
-rw-r--r-- 1 user user 3.7K Jul 17 14:32 .bashrc
drwxr-xr-x 2 user user 4.0K Jul 17 14:32 Documents
drwxr-xr-x 2 user user 4.0K Jul 17 14:32 Downloads
```

This command is very powerful with many options to customize the listing of files and directories to suit your needs.