Info Catalog grep: Invoking grep: Environment Variables

grep: Command-line Options

 
 2.1 Command-line Options
 ========================
 
 ‘grep’ comes with a rich set of options: some from POSIX and some being
 GNU extensions.  Long option names are always a GNU extension, even for
 options that are from POSIX specifications.  Options that are specified
 by POSIX, under their short names, are explicitly marked as such to
 facilitate POSIX-portable programming.  A few option names are provided
 for compatibility with older or more exotic implementations.
 

Menu

 
· Generic Program Information
· Matching Control
· General Output Control
· Output Line Prefix Control
· Context Line Control
· File and Directory Selection
· Other Options
 
    Several additional options control which variant of the ‘grep’
 matching engine is used.  ⇒grep Programs.
 

Info Catalog grep: Invoking grep: Environment Variables