Add a /bin/clear that prints the clear terminal escape sequence.

It doesn't work yet, but it will!

Userland/.gitignore

@@ -11,3 +11,4 @@ true
 hostname
 cat
 uname
+clear

Userland/Makefile

@@ -10,7 +10,8 @@ OBJS = \
        false.o \
        hostname.o \
        cat.o \
-       uname.o
+       uname.o \
+       clear.o
 
 APPS = \
        id \
@@ -24,7 +25,8 @@ APPS = \
        false \
        hostname \
        cat \
-       uname
+       uname \
+       clear
 
 ARCH_FLAGS =
 STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib
@@ -80,6 +82,9 @@ cat: cat.o
 uname: uname.o
 	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
 
+clear: clear.o
+	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
 

Userland/clear.cpp

@@ -0,0 +1,8 @@
+#include <LibC/stdio.h>
+
+int main(int, char**)
+{
+    printf("\033[3J\033[H\033[2J");
+    return 0;
+}
+