• RRP: £31.99
  • You Save: £11.06 (35%)
FREE Delivery in the UK.
Only 11 left in stock (more on the way).
Dispatched from and sold by Amazon. Gift-wrap available.
Sed & Awk has been added to your Basket
+ £0.00 delivery
Used: Good | Details
Sold by Greener_Books
Condition: Used: Good
Comment: **SHIPPED FROM UK** We believe you will be completely satisfied with our quick and reliable service. All orders are dispatched as swiftly as possible! Buy with confidence!
Have one to sell?
Flip to back Flip to front
Listen Playing... Paused   You're listening to a sample of the Audible audio edition.
Learn more
See all 2 images

Sed & Awk Paperback – 11 Mar 1997

4.3 out of 5 stars 16 customer reviews

See all 2 formats and editions Hide other formats and editions
Amazon Price
New from Used from
Kindle Edition
Paperback
£20.93
£19.82 £4.89
Note: This item is eligible for click and collect. Details
Pick up your parcel at a time and place that suits you.
  • Choose from over 13,000 locations across the UK
  • Prime members get unlimited deliveries at no additional cost
How to order to an Amazon Pickup Location?
  1. Find your preferred location and add it to your address book
  2. Dispatch to this address when you check out
Learn more
click to open popover


Frequently bought together

  • Sed & Awk
  • +
  • grep Pocket Reference (Pocket Reference (O'Reilly))
  • +
  • bash Pocket Reference
Total price: £39.07
Buy the selected items together

Enter your mobile number or email address below and we'll send you a link to download the free Kindle App. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required.

  • Apple
  • Android
  • Windows Phone

To get the free app, enter your mobile phone number.



Product details

  • Paperback: 434 pages
  • Publisher: O'Reilly Media; 2nd edition (1 Jan. 1997)
  • Language: English
  • ISBN-10: 1565922255
  • ISBN-13: 978-1565922259
  • Product Dimensions: 17.8 x 2.5 x 23.3 cm
  • Average Customer Review: 4.3 out of 5 stars 16 customer reviews
  • Amazon Bestsellers Rank: 175,806 in Books (See Top 100 in Books)
  • Would you like to tell us about a lower price?
    If you are a seller for this product, would you like to suggest updates through seller support?

  • See Complete Table of Contents

Product description

Synopsis

sed & awk describes two text processing programs that are mainstays of the UNIX programmer's toolbox. sed is a "stream editor" for editing streams of text that might be too large to edit as a single file, or that might be generated on the fly as part of a larger data processing step. The most common operation done with sed is substitution, replacing one block of text with another. awk is a complete programming language. Unlike many conventional languages, awk is "data driven" -- you specify what kind of data you are interested in and the operations to be performed when that data is found. awk does many things for you, including automatically opening and closing data files, reading records, breaking the records up into fields, and counting the records. While awk provides the features of most conventional programming languages, it also includes some unconventional features, such as extended regular expression matching and associative arrays. sed & awk describes both programs in detail and includes a chapter of example sed and awk scripts. This edition covers features of sed and awk that are mandated by the POSIX standard.

This most notably affects awk, where POSIX standardized a new variable, CONVFMT, and new functions, toupper() and tolower(). The CONVFMT variable specifies the conversion format to use when converting numbers to strings (awk used to use OFMT for this purpose). The toupper() and tolower() functions each take a (presumably mixed case) string argument and return a new version of the string with all letters translated to the corresponding case. In addition, this edition covers GNU sed, newly available since the first edition. It also updates the first edition coverage of Bell Labs nawk and GNU awk (gawk), covers mawk, an additional freely available implementation of awk, and briefly discusses three commercial versions of awk, MKS awk, Thompson Automation awk (tawk), and Videosoft (VSAwk).

From the Publisher

sed & awk describes two text manipulation programs that are mainstays of the UNIX programmer's toolbox. This edition covers the sed and awk programs as they are mandated by the POSIX standard and includes discussion of the GNU versions of these programs.

See all Product description

Customer reviews

Share your thoughts with other customers
See all 16 customer reviews

Top customer reviews

12 October 2017
Format: Paperback|Verified Purchase
One person found this helpful
|Comment|Report abuse
15 November 2001
Format: Paperback|Verified Purchase
10 people found this helpful
|Comment|Report abuse
18 June 2012
Format: Kindle Edition|Verified Purchase
2 May 2000
Format: Paperback
11 people found this helpful
|Comment|Report abuse
VINE VOICE
4 July 2004
Format: Paperback
2 people found this helpful
|Comment|Report abuse
15 February 2012
Format: Paperback
2 people found this helpful
|Comment|Report abuse
31 May 2000
Format: Paperback
2 people found this helpful
|Comment|Report abuse
29 April 1999
Format: Paperback
6 people found this helpful
|Comment|Report abuse

Would you like to see more reviews about this item?

Where's My Stuff?

Delivery and Returns

Need Help?