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Task/String-comparison/UNIX-Shell/string-comparison.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+A=Bell
+B=Ball
+
+# Traditional test command implementations test for equality and inequality
+# but do not have a lexical comparison facility
+if [ $A = $B ] ; then
+  echo 'The strings are equal'
+fi
+if [ $A != $B ] ; then
+  echo 'The strings are not equal'
+fi
+
+# All variables in the shell are strings, so numeric content cause no lexical problems
+# 0 , -0 , 0.0 and 00 are all lexically different if tested using the above methods.
+
+# However this may not be the case if other tools, such as awk are the slave instead of test.