What are common Bash commands?

Here are some common Bash commands that are frequently used:

ls: Lists files and directories in the current directory.
```
ls -l  # Lists with detailed information
```

cd: Changes the current directory.

cd /path/to/directory  # Navigate to a specific directory

pwd: Prints the current working directory.
```
pwd
```
mkdir: Creates a new directory.
```
mkdir new_directory
```
rmdir: Removes an empty directory.
```
rmdir empty_directory
```

rm: Removes files or directories.

rm file.txt  # Deletes a file
rm -r directory_name  # Deletes a directory and its contents

cp: Copies files or directories.

cp source.txt destination.txt  # Copies a file
cp -r source_directory/ destination_directory/  # Copies a directory

mv: Moves or renames files or directories.

mv old_name.txt new_name.txt  # Renames a file
mv file.txt /path/to/destination/  # Moves a file

cat: Concatenates and displays file content.
```
cat file.txt
```
echo: Displays a line of text or variable value.
```
echo "Hello, World!"
```
grep: Searches for a specific pattern in files.
```
grep "search_term" file.txt
```
find: Searches for files and directories in a directory hierarchy.
```
find /path/to/search -name "*.txt"
```

chmod: Changes file permissions.

chmod 755 script.sh  # Sets permissions for a script

chown: Changes file owner and group.
```
chown user:group file.txt
```

man: Displays the manual for a command.

man ls  # Shows the manual for the ls command

These commands form the foundation of file management and navigation in the Bash shell. If you need more details or examples for any specific command, let me know!