This is fine.

bin/install.sh

+#!/bin/sh
+
+PATH=/bin
+
+. /opt/snmp_stats/lib/common.sh
+
+systemd_service_config='/etc/systemd/system/save_io_stats.service'
+if [[ ! -f "${systemd_service_config}" ]]; then
+    log "Installing systemd service configuration file"
+    cat "${_share_dir}/systemd/save_io_stats.service" >"${systemd_service_config}"
+fi
+
+sudoers_config='/etc/sudoers.d/save_io_stats'
+if [[ ! -f "${sudoers_config}" ]]; then
+    log "Installing sudoers configuration file"
+    cat "${_share_dir}/sudoers/save_io_stats" >"${sudoers_config}"
+fi
+
+io_stats_spool="${_spool_dir}/io"
+if [[ ! -f "${io_stats_spool}" ]]; then
+    log "Creating the spool directory"
+    mkdir -p "${io_stats_spool}"
+    chown root:nobody "${io_stats_spool}"
+    chmod 0770 "${io_stats_spool}"
+fi
+
+log "Installation steps have been completed"

lib/common.sh

@@ -7,4 +7,5 @@ _log_dir="${_root_dir}/log"
 _var_dir="${_root_dir}/var"
 _lock_dir="${_var_dir}/run"
 _spool_dir="${_var_dir}/spool"
+_share_dir="${_root_dir}/share"
 _mib_root=".1.3.6.1.4.1.53033.100"

share/sudoers/save_io_stats

+nobody	ALL = NOPASSWD: /usr/sbin/iotop -d 10 -n 2 -k -b -a -o -P

share/systemd/save_io_stats.service

+[Unit]
+Description=IO Stats Collector
+
+[Service]
+User=nobody
+ExecStart=/opt/snmp_stats/bin/save_io_stats.sh
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target