1 files changed, 21 insertions, 0 deletions
diff --git a/bash/step0_repl.sh b/bash/step0_repl.sh
new file mode 100755
index 0000000..261ecc2
--- /dev/null
+++ b/bash/step0_repl.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+READ () {
+    read -u 0 -e -p "user> " r
+}
+
+EVAL () {
+    r=
+    eval "${1}"
+}
+
+PRINT () {
+    r="${1}"
+}
+
+while true; do
+    READ
+    EVAL "${r}"
+    PRINT "${r}"
+    echo "${r}"
+done