With -w, grep will match “error” but skip things like “errors” or “terror.” The difference can be subtle, but when you’re ...

Carrying over from yesterday’s examination of the Ubuntu command line, today’s installment of 30 Days With Ubuntu Linux is dedicated to ‘man’ and ‘grep’. These commands wield significant power, and ...

The setup: I have a directory. In this directory is a series of subdirectories. In each subdirectory are four or five text files. The files are all named identically from directory to directory; i.e.

The grep command is a handy, reliable tool for searching for files or information. This tutorial illustrates 10 ways to take advantage of its power and flexibility. From the tutorial: Windows search ...

The simplest grep command looks like the one shown below. This “find string in file” command will show all the lines in the file that contain the string, even when that string is only part of a longer ...

grep is a command-line utility for searching plain-text data sets for lines that match a regular expression. Created in the early days of Unix, it has become a cornerstone of text processing in Linux ...

The essential command for searching for strings on the Linux command line is 'grep'. However, the weakness of grep is that it cannot search for character strings in video files and PDF files. ' ...

I want to do something like grep a file and then delete all the lines that are returned while leaving the rest of the lines intact. I know this should be fairly simple, but for some reason I can't ...