I have a compiled .o file, and how to modify a string constant in it? for example, change “hello” to “HELLO”. Let’s take a look at this simple C …
How would you print just the 10th line of a file? For example, assume that file.txt has the following content: Line 1 Line 2 Line 3 Line 4 Line …
The regular expressions simplify our lives. For example, if you want to remove all blank lines (empty), instead of writing any scripts or programs, you can simply use the …
Sed (Stream Editor) is probably the most popular programming utility that handles the text stream under Linux. It’s very powerful and can be used to very complex daily jobs. …