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Unix Commands  «Prev  Next»
Lesson 8 The –c option to grep
Objective Use grep/ Count number of lines matching pattern.

–c option to grep

Use grep to count the number of lines matching a pattern.
You can use the –c option with grep to display the lines that match your search parameters.
Here is some information about regular expression wildcards.

-C NUM
--context=[NUM]
     (GNU Extension)
     Print NUM lines (default 2) of output context.

`-c'
`--count'
     Suppress normal output; instead print a count 
   of matching linesfor each input file.  
   With the `-v', `--invert-match' option,
     count non-matching lines.
    


The next lesson demonstrates how to redirect output with the tee command[1].

coption grep - Exercise

Click the Exercise link below to practice using the grep command.
coption grep - Exercise

[1]command: If set, holds the command passed to the shell with the -c option.