How to Change Default Shell to Bash
Some users may ask you to change the default shell to BASH as their used to be. Here are the steps: Check Default Shell Login… Read More »How to Change Default Shell to Bash
Unix
How to Remove Files with Names Containing Special Characters
Here I demonstrate how to remove files with names containing special characters: $ echo "Hello" > "177" $ ls -il total 2 234981… Read More »How to Remove Files with Names Containing Special Characters
How to Estimate File Space Usage by du
Command "du" is very common tool to calculate the overall used space in Unix and very useful in tracing potential growing files and directories. For… Read More »How to Estimate File Space Usage by du
How to Monitor UNIX CPU Usage by Process
OP usually have been told and trained to use "top" command to monitor the overall status of a server, the "top" command can show many… Read More »How to Monitor UNIX CPU Usage by Process
How to Remove No-Name or Empty-Name Files
After you finish your shell scripting, you'd like to try your scripts to see the result in your test environment. In the debug phase, you… Read More »How to Remove No-Name or Empty-Name Files
How to Resolve Only at Command is Available to Schedule Jobs
Only at Command Available When you are a customer DBA at your client's site to do routine db data collection or planned health check tasks,… Read More »How to Resolve Only at Command is Available to Schedule Jobs
How to Monitor Unix Memory Usage by Processes
Monitor Memory Usage In Unix, you have many tools to monitor the overall memory usage, such as vmstat, sar, top and free. Using vmstat Command… Read More »How to Monitor Unix Memory Usage by Processes