Autosave: 2023-02-04 09:26:34

Programming_Languages/Shell/Loops_in_bash.md

@@ -0,0 +1,15 @@
+---
+categories:
+  - Programming Languages
+tags:
+  - shell
+---
+
+# Loops in bash
+
+```bash
+for element in "${arr[@]}"
+do
+    echo "$element"
+done
+```

Programming_Languages/Shell/Split_into_array.md

@@ -9,8 +9,7 @@ tags:
 
 ## `readarray`
 
-`readarray` makes it really easy to split input into an array.
-
+`readarray` makes it really easy to split input into an array based on new lines.
 Say we have this file as input:
 
 ```
@@ -48,3 +47,18 @@ is
 > The _-t_ flag removes the trailing newline
 
 Add more: https://linuxhint.com/split-string-array-bash/
+
+## `read`
+
+For different delimiters we have to use `read`, combined with `IFS` the **Internal Field Separator**.
+
+For example, to split by comma:
+
+```plaintext
+# comma-input.txt
+something, something else, something more
+```
+
+```bash
+IFS=',' read -a arr < ./comma_inputs.txt
+```