Find largest files on disk drive
Want to quickly find the largest files eating up your disk? $ du -ah / | sort -rh | head -n 10 Shows top 10 biggest files/folders from root.
Continue reading →Category Archives: Linux
Text Based Weather Report
At the bash prompt enter curl wttr.\in or curl wttr.\in/Atlanta (replace Atlanta with your city or city code)
Continue reading →Adjust disk space used by journal in linux
You can diminish the size of the journal by means of these commands: sudo journalctl –vacuum-size=100M This will retain the most recent 100M of data. sudo journalctl –vacuum-time=10d will delete everything but the last 10 days. The above commands are … Continue reading →
Add dummy network interface to Linux
There are many reasons why you would do this, most of which are for testing and learning. Not going to go into why – just going to do it. nmcli con add type dummy ifname dummy0 con-name dummy0 ipv4.address 10.101.101.1/24 … Continue reading →
smbclient mget
smbclient \\\\server\\sharename password -Uusername -c “prompt;mget *”
Continue reading →Crontab time format
|——————————- Minute (0-59) | |————————- Hour (0-23) | | |——————- Day of the month (1-31) | | | |————- Month (1-12; or JAN to DEC) | … Continue reading →
tftp and firewall-cmd
Update – I installed fedora 41 and my original fix below did not work any more New fix firewall-cmd –permanent –new-policy tftp-client-data firewall-cmd –permanent –policy tftp-client-data –add-ingress-zone HOST firewall-cmd –permanent –policy tftp-client-data –add-egress-zone ANY firewall-cmd –permanent –policy tftp-client-data –add-service tftp … Continue reading →
Set time format to 24 hours at shell prompt
You type in date on your linx box and you get Tue Sep 5 5:08:49 PM CDT 2023 but you want it to read Tue Sep 5 17:08:49 CDT 2023 To make that happen execute localectl set-locale LC_TIME=”C.UTF-8″ Log off, … Continue reading →
Throttle processor speed in Linux
I have a system that runs in a environment that tends to be on the warm side. If the processor starts running at 3Ghz or higher, the processor starts some serious overheating. Applications I have running on this system do … Continue reading →
imjournal: filecreatemode is not set
You find the following line in your messages file imjournal: filecreatemode is not set, using default 0644 This is not a critical error. To eliminate this message edit /etc/rsyslog.conf and find the line module(load=”imjournal” fileCreateMode=”644″ StateFile=”imjournal.state”) note it might be … Continue reading →