It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. I am looking for reading a txt file and storing the values into variable using shell script ksh. I have nearly tried all the methods which are available over the internet. I couldnt able to get them worked. It looks like sci.
How To Assign Output of a Linux Command to a Variable
A variable in a shell script is a means of referencing a numeric or character value. These are the variables which are created and maintained by Operating System Linux itself. Some of the system defined variables are given below :. This is demonstrated in the following script:. Notice that the environment variables in the echo commands are replaced by their current values when the script is run. There is a drawback to using this method, however. Look at what happens in this example:.
DOS does not require declaration of variables. Most people like this, as it reduces the amount of code to write. This is a useful tool if you need to validated that user input is a numerical value.
Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. I've also tried the same thing with the dd command