QA & Testing

Every once in a while someone is looking for a file of a specific size. Occasionally, it must be real data. If you are transmitting the file...

In the past I have written scripts which required a lot of data. I could have the script read a second file with all the data in it but occa...

From time to time I see people asking questions about how to use an automation tool to do something the tool was never meant to do. For exam...

Someone was having trouble writing a shell script. A common activity for Bourne shell scripting is to take the output from various commands ...

I work in an environment with numerous different versions of UNIX and Linux. Sometimes I'll be accessing multiple machines from my works...

If you are familiar with UNIX, you are familiar with pipes. For example, I can do: ps -ef | sort | more The ps command will output a list ...

Someone recently asked me how to select a range of text from a log file. Because it was a log file, each line started with the date and time...

What do you do if you have a shell script that cannot be run twice at the same time, i.e. you have to wait until the script finishes before ...

Now a days you will most likely be exposed to AT&T System V UNIX. Years ago there were dozens of different 'versions' of UNIX. A...

When most people start programming Bourne shell scripts they are VERY small. If you take over someone else's work or you have been prog...