Compiler design


#1

What does the following command do?
Grep -vn “abc” x


#2

grep is a LINUX operation system shell scripting command, this command is used to quest for the file or the line containing the string or words given in quotes.
_ vn is the extended command for grep it is used when the string or words given in quotes are excluded from the search, ie not to provide the output eliminating the words.
X is used to execute permission for the file.
so, this command will yield us the output of files not containing “abc” files and also will remove the files containing the string.