egrep

extended regular expression grep (UNIX)

Syntax:

egrep [-chilnsvx] [-e expression...|-f expression_file|expression] 
      [file...]

Description:

The egrep utility does an extended regular expression grep (equivalent to grep -E). See the documentation for grep for details.

Exit status:

0

Lines were found matching the expression provided.

>0

An error occurred or no matching lines were found.

See also:

• grep utility (Search for string patterns)
• diff utility (Report the differences between two files)
• find utility (Find files)
• sort utility (Sort, merge or sequence-check text files)