If and Decision making is done

filetest.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+#for provided file print the summary of what permissions users has granted
+#example:   ./filetest.sh hello.txt
+#READ:      YES
+#WRITE:     NO
+#EXECUTABLE:NO
+
+#argument check
+
+if [ $# -ne 1 ]; then
+    echo "Provide exactly one argument"
+    exit 1
+fi
+
+#variable assignment
+FILE=$1
+
+#check if the file exists 
+if [ -f $FILE ]; then
+
+    #default variables
+    VAR_READ="NO"
+    VAR_WRITE="NO"
+    VAR_EXEC="NO"
+
+    #check if file is readable
+    if [ -r $FILE ]; then
+        VAR_READ="YES"
+    fi
+
+    #check if file is writable
+    if [ -w $FILE ]; then
+        VAR_WRITE="YES"
+    fi
+
+    #check if file is executable
+    if [ -x $FILE ]; then
+        VAR_EXEC="YES"
+    fi
+
+    #write permissions summary to user
+    echo "==FILE:   $FILE=="
+    echo "READ:         $VAR_READ"
+    echo "WRITE:        $VAR_WRITE"
+    echo "EXECUTABLE:   $VAR_EXEC"
+else
+    echo $FILE does not exists
+fi