added a page for the read builtin

pages/common/read.md

@@ -0,0 +1,23 @@
+# read
+
+> BASH builtin for retrieving data from standard input
+
+- store data that you type from the keyboard
+
+`read {{variable}}`
+
+- store each of the next lines you enter as values of an array
+
+`read -a {{array}}
+
+- enable backspace and GNU readline hotkeys when entering input with read
+
+`read -e {{variable}}
+
+- specify the number of maximum characters to be read
+
+`read -n {{character_count}} {{variable}}
+
+- use a specific character as a delimiter instead of a new line
+
+`read -d {{delimiter}} {{variable}}