-b flag

Author: craig-dsilva

implement-shell-tools/cat/cat.py

@@ -2,11 +2,13 @@
 
 parser = argparse.ArgumentParser(prog="cat", description="Prints the output of a file to the console")
 parser.add_argument("-n", "--number", help="Displays the lines along with their number", action="store_true")
+parser.add_argument("-b", "--nonblank", help="Displays the lines along with their number", action="store_true")
 parser.add_argument("path", help="The file path", nargs="+")
 
 args = parser.parse_args()
 
 show_lines = args.number
+non_blank = args.nonblank
 
 text = ""
 i = 1
@@ -18,10 +20,16 @@
 text_list = text.split("\n")
 text_list.pop(len(text_list) - 1)
 
-if (show_lines == False):
+if (show_lines == False and non_blank == False):
     print("\n".join(text_list))
     exit()
 
 for line in text_list:
-    print("     " + str(i) + " " + line)
-    i += 1
+    if non_blank == True and line != "":
+        print("     " + str(i) + " " + line)
+        i += 1
+    elif non_blank == False:
+        print("     " + str(i) + " " + line)
+        i += 1
+    else:
+        print("")