August 1, 2020

AWK: Manual

General Introduction This file documents ‘awk’, a program that you can use to select particular records in a file and perform operations upon them. Copyright (C) 1989, 1991, 1992, 1993, 1996-2005, 2007, 2009-2020 Free Software Foundation, Inc. This is Edition 5.1 of ‘GAWK: Effective AWK Programming: A User’s Guide for GNU Awk’, for the 5.1.0 (or later) version of the GNU implementation of AWK. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.

August 1, 2020

SED: Manual

GNU ‘sed’ Introduction Running sed Overview Command-Line Options Exit status ‘sed’ scripts ‘sed’ script overview ‘sed’ commands summary The ’s’ Command Often-Used Commands Less Frequently-Used Commands Commands for ‘sed’ gurus Commands Specific to GNU ‘sed’ Multiple commands syntax Commands Requiring a newline Addresses: selecting lines Addresses overview Selecting lines by numbers selecting lines by text matching Range Addresses Regular Expressions: selecting text Overview of regular expression in ‘sed’ Basic (BRE) and extended (ERE) regular expression Overview of basic regular expression syntax Overview of extended regular expression syntax Character Classes and Bracket Expressions regular expression extensions Back-references and Subexpressions Escape Sequences - specifying special characters Escaping Precedence Multibyte characters and Locale Considerations Invalid multibyte characters Upper/Lower case conversion Multibyte regexp character classes Advanced ‘sed’: cycles and buffers How ‘sed’ Works Hold and Pattern Buffers Multiline techniques - using D,G,H,N,P to process multiple lines Branching and Flow Control Branching and Cycles Branching example: joining lines Some Sample Scripts Joining lines Centering Lines Increment a Number Rename Files to Lower Case Print ‘bash’ Environment Reverse Characters of Lines Text search across multiple lines Line length adjustment Reverse Lines of Files Numbering Lines Numbering Non-blank Lines Counting Characters Counting Words Counting Lines Printing the First Lines Printing the Last Lines Make Duplicate Lines Unique Print Duplicated Lines of Input Remove All Duplicated Lines Squeezing Blank Lines GNU ‘sed'’s Limitations and Non-limitations Other Resources for Learning About ‘sed’ Reporting Bugs Appendix A GNU Free Documentation License Concept Index Command and Option Index GNU ‘sed’ This file documents version 4.

Linux Manuals

The Web Applications Programming Technology User Group collection of GNU Linux Command Files

GNU Linux Manuals