From e06b02869784ada3d82328c0e6c4b3a001e47d53 Mon Sep 17 00:00:00 2001
From: miguel <miguel-silva98@hotmail.com>
Date: Wed, 30 Nov 2022 17:03:44 +0000
Subject: [PATCH] feat(strange-files): add subject, test and solution for new a
 exercise

---
 .../solutions/\"\\?$*'First_file'*$?\\\""     |  1 +
 sh/tests/strange-files_test.sh                |  8 ++++
 subjects/strange-files/README.md              | 43 +++++++++++++++++++
 3 files changed, 52 insertions(+)
 create mode 100644 "sh/tests/solutions/\"\\?$*'First_file'*$?\\\""
 create mode 100755 sh/tests/strange-files_test.sh
 create mode 100644 subjects/strange-files/README.md

diff --git "a/sh/tests/solutions/\"\\?$*'First_file'*$?\\\"" "b/sh/tests/solutions/\"\\?$*'First_file'*$?\\\""
new file mode 100644
index 000000000..f9406d9c8
--- /dev/null
+++ "b/sh/tests/solutions/\"\\?$*'First_file'*$?\\\""
@@ -0,0 +1 @@
+Random text inside!
\ No newline at end of file
diff --git a/sh/tests/strange-files_test.sh b/sh/tests/strange-files_test.sh
new file mode 100755
index 000000000..117af30e5
--- /dev/null
+++ b/sh/tests/strange-files_test.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+diff student/\"\\?\$*\'First_file\'*\$?\\\" solutions/\"\\?\$*\'First_file\'*\$?\\\"
diff --git a/subjects/strange-files/README.md b/subjects/strange-files/README.md
new file mode 100644
index 000000000..13f41c442
--- /dev/null
+++ b/subjects/strange-files/README.md
@@ -0,0 +1,43 @@
+## Strange Files
+
+We come across files and folders name very regularly. In most of the cases file/folder names are related to the content of the file/folder and starts with numbers or letters. Alpha-Numeric file name are pretty common and very widely used, but this is not the case when we have to deal with file/folder name that has special characters in them.
+
+Example of most common file names are:
+
+```console
+something.txt
+alphanum21.txt
+674659.txt
+```
+
+Examples of file names that have special characters:
+
+```console
+#121day.txt
+some/file#.txt
+*File$*.txt
+```
+
+When You create a file with some special character, you will need to `escape` those special characters in order to create that file.
+
+A non-quoted backslash `\` is the escape character. The backslash `\` preceding a character tells the shell to interpret that special character literally.
+
+Example:
+
+If you want to create a file named `foo!\.txt` You have to escape the characters like so:
+
+```console
+User-> code foo\!\\.txt
+```
+
+### Instructions
+
+Create a file `"\?$*'First_file'*$?\"` that will contain `Random text inside!` and **nothing else**.
+
+### Usage
+
+```console
+User-> ls | cat -e
+"\?$*'First_file'*$?\"$
+User->
+```