Answer Posted / kiran sangeri
grep is one of many standard UNIX utilities. It searches
files for specified words or patterns. First clear the
screen, then type
% grep science science.txt
As you can see, grep has printed out each line containg the
word science.
Or has it ????
Try typing
% grep Science science.txt
The grep command is case sensitive; it distinguishes
between Science and science.
To ignore upper/lower case distinctions, use the -i option,
i.e. type
% grep -i science science.txt
To search for a phrase or pattern, you must enclose it in
single quotes (the apostrophe symbol). For example to
search for spinning top, type
% grep -i 'spinning top' science.txt
Some of the other options of grep are:
-v display those lines that do NOT match
-n precede each matching line with the line number
-c print only the total count of matched lines
Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
What is the use of the command 'ls -x chapter[1-5]' ?
Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?
Explain ‘library functions’ with respect to unix commands?
What is the use of the tee command?
What is command statement?
What is the difference between cat command and more command?
What is grep in bash?
What is the command to find hidden files in the current directory?
What is the significance of the 'tee' command?
Is it inbetween or in between?
What is the use of egrep command in unix?
What are the unix commands?
Who wrote grep?
Enumerate some of the most commonly used network commands in unix?
What does awk stand for?