1 files changed, 9 insertions, 0 deletions

diff --git a/c.sh b/c.sh
new file mode 100755
index 0000000..146f0a6
--- /dev/null
+++ b/c.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+symbol="$1"
+
+if [ -z "$symbol" ]; then
+    symbol="//"
+fi
+
+sed -E "s|^|$symbol|"