Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: sed multiline problem
Top Forums Shell Programming and Scripting sed multiline problem Post 303019235 by prooney on Monday 25th of June 2018 03:22:03 PM
Old 06-25-2018
sed multiline problem
I'm trying to replicate the sed output on p.108 of Sed&Awk,by Doughery & Robbins, 2nd edition.

I'm on a Windows 10 Surface Pro, running Cygwin for 64-bit versions of Windows.

Input text saved in text file called data_p108.txt:

Code:
Consult Section 3.1 in the Owner and Operator
Guide for a description of the tape drives
available on your system.

sed script saved in file called multiline_scr:

Code:
/Operator$/{
N
s/Owner and Operator\nGuide /Installation Guide\
/
}

command I ran:

Code:
sed -f multiline_scr data_p108.txt

output:

Code:
Consult Section 3.1 in the Owner and Operator
Guide for a description of the tape drives
available on your system.

I was expecting the script to produce the output on p.108:

Code:
Consult Section 3.1 in the Installation Guide
for a description of the tape drives
available on your system.

I'm using the Atom editor which shows a carriage return and line feed
characters at the end of each line in the script and input data.

Any ideas why the script seems to just echo back the input?

I can get sed to work on single-line input but not on multi-line input as in
the above.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Multiline replace problem

I have a data of the form 0.0117843924 0. 0. 0. 0. 0.011036017 0. 0. 0. 0. 0.0103351669 0. 0. 0. 0. 4839.41211 0. 0. 0. 0. 4532.08203 0. 0. 0. 0. I would like to insert a couple of blank lines before the 4839 line, every time it appears. The numbers in the... (2 Replies)
Discussion started by: mathis
2 Replies

2. Shell Programming and Scripting

delete multiline string from file using sed.

Hi, I have file which has the following content... GOOD MORNING **********WARNING********** when it kicks from the kickstart, sshd daemon should start at last. (WHEN KICKING ITSELF, NOT AFTER KICKING). /etc/rc3.d/S55sshd ( run level specification for sshd is 55, now I would want to... (4 Replies)
Discussion started by: skmdu
4 Replies

3. Shell Programming and Scripting

Multiline pattern search using sed or awk

Hi friends, Could you please help me to resolve the below issue. Input file :- <Node> <username>abc</username> <password>ABC</password> <Node> <Node> <username>xyz</username> <password>XYZ</password> <Node> <Node> <username>mnp</username> ... (3 Replies)
Discussion started by: haiksuresh
3 Replies

4. Shell Programming and Scripting

sed multiline substitution if a condition holds

Hi. I have the following text file (more precisely a Matlab script): dummy1 = 5; varx = 'false'; dummy2 = 6; % ... some general commands % ... dummy3 = 7; vary = 'option1'; dummy4 = 8; Using sed I want to do the following action: IF varx = 'false' vary='NEW_VALUE_1'... (11 Replies)
Discussion started by: plsrn
11 Replies

5. UNIX for Dummies Questions & Answers

sed multiline pattern match

How can I write a script that takes a cisco config file and outputs every occurrence of two, or more, pattern matches through the whole config file? For example, out of a config file, i want to print out every line with interface, description and ip address through the whole file, and disregard... (3 Replies)
Discussion started by: knownasthatguy
3 Replies

6. UNIX for Dummies Questions & Answers

Need Multiline sed help!!

Hey everyone, I'm new to sed and I need to create a script for inserting one line of code at the beginning of every method in a Xcode project (over 6,000 methods). Each method Structure is (+ or -) (Various declarations-- could span multiple lines) ({) I've tried for days, any guidance would be... (2 Replies)
Discussion started by: jimmyz
2 Replies

7. Shell Programming and Scripting

sed to extract a multiline subject from a mail message

I'm trying to extract a subject from a mail message but my subject example has 2 lines. How can I manage to extract it and write a string at the end of it? Consider this example: From: test@domain.com Subject: Re: U =?ISO-8859-1?Q?qu=EA=3F!=3F!=3F!!_wtff_=E7=E3o_=ED=F3?= ... (6 Replies)
Discussion started by: twisterbr
6 Replies

8. Shell Programming and Scripting

Multiline sed

Hi guys, I am fairly comfortable with using the sed command if the string to be replaced is all on a single line. I was wondering is it possible to use sed command in a multiline way ? Say for example I have the below string on 2 different lines: { "key": "brandNameA", ... (3 Replies)
Discussion started by: Junaid Subhani
3 Replies

9. Shell Programming and Scripting

[sed]: Substitute a string with a multiline value

Dear all, I try to replace a string of characters in a file (MyFile.txt) by a multiline value of the variable "Myvar": $ cat MyFile.txt DESCRIPTION '@TargetTable SCHEMA' ( @InputFlowDef ); $ The content of Myvar: $ echo "$Myvar" col1 , col2 , col3 $ (4 Replies)
Discussion started by: dae
4 Replies

LEARN ABOUT DEBIAN

shtool-subst

SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME

       shtool-subst - GNU shtool sed(1) substitution operations

SYNOPSIS

       shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
       [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]

DESCRIPTION

       This command applies one or more sed(1) substitution operations to stdin or any number of files.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -n, --nop
	   No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.

       -w, --warning
	   Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
	   operations resulted in no content change on all files.

       -q, --quiet
	   Suppress warning on substitution operation resulting in no content change.

       -s, --stealth
	   Stealth operation. Preserve timestamp on file.

       -i, --interactive
	   Enter interactive mode where the user has to approve each operation.

       -b, --backup ext
	   Preserve backup of original file using file name extension ext.  Default is to overwrite the original file.

       -e, --exec cmd
	   Specify sed(1) command directly.

       -f, --file cmd-file
	   Read sed(1) command from file.

EXAMPLE

	#   shell script
	shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]

	#    RPM spec-file
	%install
	    shtool subst -v -n 
		-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' 
		-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' 
		`find . -name Makefile -print`
	    make install

HISTORY

       The GNU shtool subst command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 2001 for GNU shtool.  It was prompted
       by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.

SEE ALSO

       shtool(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-SUBST.TMP(1)
All times are GMT -4. The time now is 08:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy