1 files changed, 30 insertions, 0 deletions
diff --git a/src/timestamp b/src/timestamp
new file mode 100755
index 0000000..d8870e2
--- /dev/null
+++ b/src/timestamp
@@ -0,0 +1,30 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		  timestamp [-E]
+	EOF
+}
+
+EXTENDED=false
+while getopts 'E' flag; do
+	case "$flag" in
+		(E)
+			EXTENDED=true
+			;;
+		(*)
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+
+if [ "$EXTENDED" = true ]; then
+	date '+%Y-%m-%dT%H:%M:%S%:z'
+else
+	date '+%Y-%m-%d'
+fi