Last week’s column looked at how we can read from and write to files by associated the files with user-defined file descriptors. This week, we take this idea a bit further. Closing File Descriptors In ...

A computer's file permission settings determine who is able to access its files and who can make changes to them. The owner or administrator of a Mac computer can specify the permissions for any file, ...

Have you ever wanted to read a file one line at a time in a shell script and found the task to be a lot more trouble than you ever imagined? If you use a “for line ...