Command to create new file in linux

In Linux, you can create a new file using the following commands:

touch command:
```
touch filename.txt
```
This will create a new empty file named filename.txt.
echo command:
```
echo "Hello World" > filename.txt
```
This will create a new file named filename.txt and write the text "Hello World" to it.
cat command:
```
cat > filename.txt
```
This will create a new file named filename.txt and allow you to type text into it. Press Ctrl+D to save and exit.
nano editor:
```
nano filename.txt
```
This will open the nano editor and allow you to create a new file named filename.txt. You can type text into it and save it by pressing Ctrl+X, then Y, then Enter.
vim editor:
```
vim filename.txt
```
This will open the vim editor and allow you to create a new file named filename.txt. You can type text into it and save it by pressing Esc, then :wq, then Enter.

Note: Replace filename.txt with the desired name of your new file.