atop: add page (#9450)

pages/linux/atop.md

@@ -0,0 +1,32 @@
+# atop
+
+> Linux system and process monitor.
+> More information: <https://manned.org/atop>.
+
+- Start:
+
+`atop`
+
+- Start and display memory consumption for each process:
+
+`atop -m`
+
+- Start and display disk information:
+
+`atop -d`
+
+- Start and display background process information:
+
+`atop -c`
+
+- Start and display thread-specific resource utilization information:
+
+`atop -y`
+
+- Start and display the number of processes for each user:
+
+`atop -au`
+
+- Display help about interactive commands:
+
+`?`