File creation does not continue on 'Enter'

[walgorex]

$ ./boot.sh
Cleaning previous build...
Compiling logger...
Compiling modules...
Running system...

===== OS Simulator =====

1. File Management
2. Peterson
3. Memory Allocation
4. Amdahl Law
5. Exit
   Choice: 1

===== File Management System =====

1. Create File
2. Read File
3. List Files
4. Delete File
5. Exit
   Enter your choice: 2
   Enter filename:

================================================

$ ./boot.sh
Cleaning previous build...
Compiling logger...
Compiling modules...
Running system...

===== OS Simulator =====

1. File Management
2. Peterson
3. Memory Allocation
4. Amdahl Law
5. Exit
   Choice: 1

===== File Management System =====

1. Create File
2. Read File
3. List Files
4. Delete File
5. Exit
   Enter your choice: 1
   Enter filename: 123.txt
   Enter content: abc