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Full Discussion: How to specify beginning-of-line/end-of-line characters inside a regex range
Top Forums UNIX for Dummies Questions & Answers How to specify beginning-of-line/end-of-line characters inside a regex range Post 302659115 by jawsnnn on Wednesday 20th of June 2012 11:21:07 AM
Old 06-20-2012
I don't think I made myself clear. Let me give an example. Suppose the file I have is:

Code:
testABCD
jklmn|testDEFGH
klmnoptestABCD

I want the sed command to replace only the first two instances of the string "test" with "found_it", i.e. the output should contain:

Code:
found_itABCD
jklmn|found_itDEFGH
klmnoptestABCD

i.e. the string test should only be replaced with found_it if it occurs after a pipe or at the beginning of the line. I suppose this can be achieved with :

Code:
sed -e 's/^test/found_it/g' -e 's/|test/found_it/g' file1

but shouldn't this be achievable using regex patterns too?
 

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LEARN ABOUT DEBIAN

specrb

SPECRB(1)																 SPECRB(1)

NAME

       specrb - standalone test runner for test/spec and Test::Unit test suites

SYNOPSIS

       specrb [OPTIONS] [FILES | -a ] [-- untouched arguments]

DESCRIPTION

       The Ruby script specrb allows you to run tests written with test/spec from the command line. It can also be used for plain Test::Unit test
       suites. You can either specify the names of the test files you want to run, or let specrb find automatically all the tests in your project,
       by using the -a switch (see TEST/SPEC OPTIONS below).

       You can also use various options on the command line to pass parameters to the Ruby interpreterm or to modify the behavior of test/spec
       and/or test/unit.

RUBY OPTIONS

       -e, --eval LINE
	   evaluate a LINE of code

       -d, --debug
	   set debugging flags (set $DEBUG to true)

       -w, --warn
	   turn warnings on for your script

       -I, --include PATH
	   specify $LOAD_PATH (may be used more than once)

       -r, --require LIBRARY
	   require the LIBRARY, before executing your script

TEST
/SPEC OPTIONS:
       -s, --specdox
	   do AgileDox-like output

       --rdox
	   do AgileDox-like output with RDoc formatting

       -a, --automatic
	   gather tests from ./test/, include ./lib/

TEST
::UNIT OPTIONS:
       -n, --name NAME
	   runs tests matching regexp NAME

       -t, --testcase TESTCASE
	   runs tests in TestCases matching regexp TESTCASE

COMMON OPTIONS
:
       -h, --help
	   show a message similar to this manpage

       --version
	   show version

AUTHORS

       The test/spec library has been written by Christian Neukirchen <http://purl.org/net/chneukirchen>.

       This manual page, inspired by the help message of specrb, has been written for the Debian Project by Cedric Boutillier (but may used by
       others).

								    2012-06-26								 SPECRB(1)
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