diff --git a/hw3_ex1.sh b/hw3_ex1.sh
new file mode 100644
index 0000000..d664d67
--- /dev/null
+++ b/hw3_ex1.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+SIZE=$RANDOM
+dd if=/dev/urandom of=rnd.txt bs=1 count=$SIZE
diff --git a/hw3_ex2.sh b/hw3_ex2.sh
new file mode 100644
index 0000000..399753a
--- /dev/null
+++ b/hw3_ex2.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+cut -d' ' -f3 digits.txt | paste -sd+ | bc
+
diff --git a/hw3_ex3.sh b/hw3_ex3.sh
new file mode 100644
index 0000000..ddc9c3f
--- /dev/null
+++ b/hw3_ex3.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+find -type f -mtime -1 ! -mmin -30 | wc -l
diff --git a/hw3_ex4.sh b/hw3_ex4.sh
new file mode 100644
index 0000000..8da88c7
--- /dev/null
+++ b/hw3_ex4.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+while IFS= read -r line; do
+    ping -c2 $line>>file1 2>>file2
+done < ips.txt
diff --git a/hw3_ex5.sh b/hw3_ex5.sh
new file mode 100644
index 0000000..be98806
--- /dev/null
+++ b/hw3_ex5.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+echo 'Введите число: '
+read NUMBER
+if (( $NUMBER % 2 == 0 )) 
+then
+    echo '**EVEN**'
+else
+    echo '**ODD**'
+fi