xyz

first_script.sh

+#!/bin/bash
+
+# # Basics
+# num=4
+# if test $num -gt 5
+# then
+#     echo "yes"
+# else
+#     echo "no"
+# fi
+
+# num=4
+# if [ $num -le 5 ]
+# then
+#     echo True
+# else
+#     echo False
+# fi
+
+# # if /etc/passwd exist then echo whew
+# if [ -e /etc/passwd ]
+# then
+#     echo "whew"
+# else
+#     echo "uh-oh"
+# fi
+
+# # or
+# if [ -e /etc/passwd ]
+# then
+#     echo "whew"
+# fi
+
+# # Single line
+# [ ! -e /etc/passwd ] || echo "whew"
+
+
+