added second question solution

bash2.sh

+#!/bin/bash
+
+# Task 1: Create a new folder in the home directory
+mkdir ~/new_folder
+
+# Task 2: Create all possible combinations of files in the new folder
+cd ~/new_folder
+for i in {1..10}; do
+    for j in {a..z}; do
+        touch "file${i}_${j}"
+    done
+done
+
+# Task 3: Append "Hello Linux" to files ending with the letter x
+for file in *x; do
+    echo "Hello Linux" >> "$file"
+done
+
+# Task 4: Create folders for each English letter and move files to the correct folder
+for letter in {a..z}; do
+    mkdir "$letter"
+    mv [a-z]*"$letter" "$letter"
+done
+
+# Task 5: Find and delete files containing numbers 3 or 4 in their names
+find . -type f -name "*[34]*" -delete