fixed installation errors making it impossible to read some files on linux

cmd_typist.c

@@ -14,6 +14,7 @@ Program Size: 2.8MB
 #include<string.h>
 #include<time.h>
 #include<ctype.h>
+#include <unistd.h>
 
 //cmdtypist.c: Implementing the main 
 #include"functions_for_cmd_typist.h"//function prototypes and global variables.
@@ -26,6 +27,7 @@ Program Size: 2.8MB
 char argv[5][18];
 int main(int argc, char **argv)//argc=command line counter, argv=pointer to pointer to character(command line arguments)
 {
+	redirect();
 	lmt_pg_size();
 	name_display();
 	read_message_conf();//welcome message for first time users.

files.h

@@ -415,6 +415,48 @@ extern void lmt_pg_size()//limit page size
 			rewind(fp);
 		}
 	}
+	if(fclose(fp)){
+		fprintf(stderr, "%s\n", "Fatal Error, Unable to close some files\n");
+	    	exit(EXIT_FAILURE);
+	}
+}
+
+/**
+ * @param void
+ * performs a test to make sure cmdtypist has been installed to home directory
+ * installed? true: it changes the current directory the the home/cmdTypist directory
+ * false: it gives a warning message with possible fixes and continues
+ */
+extern void redirect(void)
+{	
+	char idir[62] = "";
+	if(getenv("HOME") != NULL)
+	{		
+		strncpy(idir,getenv("HOME"), 50);
+		strcat(idir, "/cmdTypist");//installation directory
+		printf("%s\n", idir);
+	}
+	// exit(0);
+	FILE *fp;
+		//call script that verifies if program is installed to $home/cmdTypist
+	char test_dir[60] = "";
+	strncpy(test_dir, idir, 50);
+	strcat(test_dir, "/files.h");
+	if((fp=fopen(test_dir,"r")) == NULL)
+	{
+		fprintf(stderr, "%s\n", "Program not installed to $HOME/cmdTypist directory\n");
+		fprintf(stderr, "\t- %s\n", "Navigate to cmdtypist directory manually, before running it\n");
+		fprintf(stderr, "\t- %s\n", "OR uninstall and reinstall a fresh copy\n");
+		return;
+	}else{
+		//system(idir); //navigate to installation directory
+		//change directory
+		if(chdir(idir) == -1){
+			fprintf(stderr, "%s\n", "Error changing directory to $HOME/cmdTypist");
+			exit(EXIT_FAILURE);
+		}
+	}
+
 	if(fclose(fp)){
 		fprintf(stderr, "%s\n", "Fatal Error, Unable to close some files\n");
 	    	exit(EXIT_FAILURE);

installation/install.sh

@@ -1,10 +1,10 @@
 #!/bin/bash
 #install cmdtypist 
-gcc ../cmd_typist.c -o ../cmd_typist &&
+gcc ../cmd_typist.c -o ../cmdtypist &&
+sudo cp ../cmdtypist /usr/bin/cmdtypist &&
+mkdir $HOME/cmdTypist && 
+cp -r ../ $HOME/cmdTypist/ &&
 sudo cp ../cmdtypist /usr/bin/cmdtypist &&
-mkdir $HOME/cmdtypist && 
-cp -r ../ $HOME/cmdtypist/ &&
-sudo cp ../cmdtypist /usr/bin/ &&
 sudo chmod +x /usr/bin/cmdtypist &&
 (echo "CMDTYPIST successfully compiled and installed, learn how to use cmdtypist commands by running 'cmdtypist --help'"; exit 0) ||
 (c=$?; echo "CMDTYPIST was unable to install: "; (exit $c)) 

uninstall/uninstall.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 #remove cmdtypist and associated files.
 sudo rm /usr/bin/cmdtypist &&
-sudo rm -r $HOME/cmdtypist &&
+sudo rm -r $HOME/cmdTypist &&
 echo "cmdtypist uninstalled" ||
-echo "unable to install cmdtypist"; exit $?
+echo "unable to uninstall cmdtypist"; exit $?