Additive color mixing begins with black and ends with white; as more color is added, the result is lighter and tends to white. The RGB colors are light primaries and colors are created with light. Percentages of red, green, & blue light are used to generate color on a computer screen.
In shell scripting we often need to check if file or directory exists and take appropriate action. This post show you how to check it and how this check use in your script. For checking we will use file test operators -f for file and -d for directory, which return TRUE if file or directory exists. And here is output of the script.
Thanks: 0. Thanked 0 Times in 0 Posts. Checking if file exists and unzipping. Hey, I am new to scripting and was wondering what is wrong with this if statement. I want to check if file exists and the if it does to unzip it. I program it as follows. Code: if [ -e *_filename.gz ]; then gunzip *_filename.gz fi. Last edited by joeyg; 11-19-2012 at 10:41 AM..