Resource Monitoring Tools - Revision history

ViciousCarnivore: /* Speed/Bandwidth */

2025-10-25T06:10:35Z

Speed/Bandwidth

2025-09-05T20:24:04Z

List Open Files

2025-09-05T20:23:24Z

Speed/Bandwidth

2025-09-05T20:22:56Z

monitor ip address up/down via ping

2025-09-05T20:22:17Z

hdd full

2025-09-05T20:21:19Z

monitor hdd usage

2025-09-05T20:16:23Z

diff on folder contents

2025-09-05T20:12:27Z

diff on folder contents

2025-09-05T20:10:54Z

diff on folder contents

2025-09-05T20:09:21Z

diff on folder contents

@@ Line 14: / Line 14: @@
   iperf3
   iperf
-  ping with the -i flag to set interval to less than 0.1 seconds (unix only and not busybox).
+  ping with the -i flag to set interval to less than 0.1 seconds (unix (gnu?) only and not busybox).
   speedtest-cli w/owrt default luci status, real-time graphs, traffic of the lan / wan interface.
   ethtool will tell you if your nic supports 1000/m
 </pre>

@@ Line 57: / Line 57: @@
 ===List Open Files===
-lsof
+ lsof
 Note: there are different types of lsof (e.g. busybox's)

@@ Line 11: / Line 11: @@
   netstat | head -n 20
 ===Speed/Bandwidth===
   iperf3
   iperf
@@ Line 18: / Line 19: @@
   ethtool will tell you if your nic supports 1000/m
 ==RAM==

@@ Line 100: / Line 100: @@
 #e.g. $ script.sh <ipaddress>
 # in /etc/crontab
-#*/3 * * * *   root /root/email_alerts/test_up.sh 192.168.1.1 #tune this frequency based on your priority
+#*/3 * * * * root /root/email_alerts/test_up.sh 192.168.1.1 #tune this frequency based on your priority
 #0 */2 * * * root rm /var/log/networkalerts/*LOCKFILE
 #0 0 * * *   root rm /var/log/networkalerts/*$(date +%A)*LOG

@@ Line 137: / Line 137: @@
 #usage: feed $1 company name/subject
 df -h | grep 100%
-if [ $? -eq 0 ]; then
+if    [ $? -eq 0 ]; then
 #send email
-  echo "hdd full" | mutt -s $1 alerts@emailaddress
+   echo "hdd full" | mutt -s $1 alerts@emailaddress
 else
-  echo "do nothing"
+   echo "do nothing"
 fi
 </pre>
 ===monitor hdd usage===
 <pre>

@@ Line 152: / Line 152: @@
 SUBJECT="hdd details"
-echo "" > $LOGFILE
+echo        ""  > $LOGFILE
-echo $COMPANY >> $LOGFILE
+echo $COMPANY  >> $LOGFILE
-echo "" >> $LOGFILE
+echo        "" >> $LOGFILE
-echo "" >> $LOGFILE
+echo        "" >> $LOGFILE
-df -h   >> $LOGFILE
+df -h          >> $LOGFILE
-echo "" >> $LOGFILE
+echo        "" >> $LOGFILE
-echo "" >> $LOGFILE
+echo        "" >> $LOGFILE
-lsblk   >> $LOGFILE
+lsblk          >> $LOGFILE
-echo "" >> $LOGFILE
+echo        "" >> $LOGFILE
-echo "" >> $LOGFILE
+echo        "" >> $LOGFILE
-dmesg | grep -e sda -e sdb -e sdc -e sdd -e sde >> $LOGFILE
+dmesg   | grep -e sda -e sdb -e sdc -e sdd -e sde >> $LOGFILE
 echo "" | mutt -s $SUBJECT alerts@email -a $LOGFILE
 </pre>

@@ Line 175: / Line 175: @@
 <pre>
 mkdir -p /var/log/folder_monitoring/folder_name
-tree "directorytowatch" | head -n 500 > /var/log/folder_monitoring/diff1
+tree     "directorytowatch" | head -n 500 > /var/log/folder_monitoring/diff1
-diff /var/log/folder_monitoring/diff0 /var/log/folder_monitoring/diff1 > /var/log/folder_monitoring/diff_result
+diff     /var/log/folder_monitoring/diff0   /var/log/folder_monitoring/diff1 > /var/log/folder_monitoring/diff_result
-cp /var/log/folder_monitoring/diff1 /var/log/folder_monitoring/folder_name/diff1_$(date  +%Y_%m_%d)
+cp       /var/log/folder_monitoring/diff1   /var/log/folder_monitoring/folder_name/diff1_$(date  +%Y_%m_%d)
-cp /var/log/folder_monitoring/diff1 /var/log/folder_monitoring/diff0
+cp       /var/log/folder_monitoring/diff1   /var/log/folder_monitoring/diff0
-echo "diff" | mutt -s "some_explanation" treediffe@email -a /var/log/folder_monitoring/diff_result
+echo    "diff" | mutt -s "some_explanation" treediffe@email -a /var/log/folder_monitoring/diff_result
 #use search / replace to adjust as needed (in nano that is ctrl-\)

@@ Line 174: / Line 174: @@
 ===diff on folder contents===
 <pre>
-#/bin/bash
+mkdir -p /var/log/folder_monitoring/folder_name
+tree "directorytowatch" | head -n 500 > /var/log/folder_monitoring/diff1
-FOLDER="/myfolder/"
+diff /var/log/folder_monitoring/diff0 /var/log/folder_monitoring/diff1 &> /var/log/folder_monitoring/diff_result
-DIFFNAME="somename"
+cp /var/log/folder_monitoring/diff0 /var/log/folder_monitoring/folder_name/diff0_$(date  +%Y_%m_%d)
+cp /var/log/folder_monitoring/diff1 /var/log/folder_monitoring/diff0
+echo "diff" | mutt -s "some_explanation" treediffe@email -a /var/log/folder_monitoring/diff_result
 #use search / replace to adjust as needed (in nano that is ctrl-\)
 </pre>
+A few updates. You want to have a history so you can look at file changes over time or debug if something breaks (script has an error, or filesystem is unconnected). That is handled by copying the old tree with the date. Also, you want to limit how many results it returns, so you pipe it into a head.