1 files changed, 16 insertions, 0 deletions
diff --git a/err.awk b/err.awk
new file mode 100755
index 0000000..cb59ae9
--- /dev/null
+++ b/err.awk
@@ -0,0 +1,16 @@
+#!/usr/bin/awk -f
+
+# Usage
+##############
+# $ ./err.awk a
+# $ echo $?
+# $ ./err.awk 1
+# $ echo $?
+
+BEGIN {
+  stderr = "/dev/stderr"
+  if (ARGV[1] ~ /[A-Za-z]/) {
+    print "Error:", "I don't understand eng" >> stderr
+    exit -1
+  }
+}