Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: sed to extract a multiline subject from a mail message
Top Forums Shell Programming and Scripting sed to extract a multiline subject from a mail message Post 302766851 by twisterbr on Tuesday 5th of February 2013 02:52:00 PM
Old 02-05-2013
Quote:
Originally Posted by alister
There's no \(...\) expression for the \1 backreference to refer to.

Appending a string to the pattern space does not require backreferences:
Instead of s/\(.*\)/\1 string/, use s/.*/& string/

If you want to append something to the line following the line that begins with "Subject:":
Code:
/^Subject:/{n; s/.*/& addendum/;}

Regards,
Alister

---------- Post updated at 02:37 PM ---------- Previous update was at 02:00 PM ----------


Test whether the pattern space contains \nDate: then insert the string appropriately (either before the newline if there's a match or at the end of the pattern space if there isn't).

Regards,
Alister
Hello Alister, thanks for your help!! but I was thinking in a more flexible way on doing that. I mean, what if the next line is not 'Date:'?

I want to do like this: "If the next line after '^Subject:' starts with a blank space, write the following string at the end of it.. if not, write at the end of the "^Subject:" line."
 

9 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. Shell Programming and Scripting

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: Consult Section 3.1 in the Owner and Operator Guide for a... (9 Replies)
Discussion started by: prooney
9 Replies

9. Shell Programming and Scripting

Need grep regex to extract multiline text between two strings

I have a file conatining the below: --- 10.9.16.116: /tmp/5835113081224811756.jar: hash: e6df90d38fa86f0e289f73d79cd2cfd2a29954eb /tmp/4603745991442278706.jar: hash: e6df90d38fa86f0e289f73d79cd2cfd2a29954eb 10.9.14.126: /tmp/conf/extra/httpd-ssl.conf: hash:... (1 Reply)
Discussion started by: mohtashims
1 Replies

LEARN ABOUT MOJAVE

sendfiles

SENDFILES(1)							     [nmh-1.5]							      SENDFILES(1)

NAME

       sendfiles - send multiple files via a MIME message

SYNOPSIS

       sendfiles [delay] mailpath subject file1 [file2 ...]

DESCRIPTION

       The shell script sendfiles, is used to send a collection of files and directories via electronic mail.

	    sendfiles mailpath "subject" files ...

       sendfiles will archive the files and directories you name with the tar command, and then mail the compressed archive to the "mailpath" with
       the given "subject".  The archive will be automatically split up into as many messages as necessary in order to get past most mailers.

       Sometimes you want sendfiles to pause after posting a partial message.  This is usually the case when you are running sendmail  and  expect
       to  generate  a lot of partial messages.  If the first argument given to sendfiles starts with a dash, then it is interpreted as the number
       of seconds to pause in between postings, e.g.,

	    sendfiles -30 mailpath "subject" files ...

       will pause 30 seconds in between each posting.

   Extracting the Received Files
       When these messages are received, invoke mhstore once for the list of messages.	The default is for mhstore to store the combined parts	as
       a  new  message	in the current folder, although this can be changed using storage formatting strings.  You can then use mhlist to find out
       what's inside; possibly followed by mhstore again to write the archive to a file where you can subsequently uncompress and untar  it.   For
       instance:

	    % mhlist 5-8
	     msg part  type/subtype		size description
	       5       message/partial		 47K part 1 of 4
	       6       message/partial		 47K part 2 of 4
	       7       message/partial		 47K part 3 of 4
	       8       message/partial		 18K part 4 of 4
	    % mhstore 5-8
	    reassembling partials 5,6,7,8 to folder inbox as message 9
	    % mhlist -verbose 9
	     msg part  type/subtype		size description
	       9       application/octet-stream 118K
			 (extract with uncompress | tar xvpf -)
			 type=tar
			 conversions=compress
	    % mhstore 9
	    % uncompress < 9.tar.Z | tar xvpf -

       Alternately, by using the -auto switch, mhstore will automatically do the extraction for you:

	    % mhlist 5-8
	     msg part  type/subtype		size description
	       5       message/partial		 47K part 1 of 4
	       6       message/partial		 47K part 2 of 4
	       7       message/partial		 47K part 3 of 4
	       8       message/partial		 18K part 4 of 4
	    % mhstore 5-8
	    reassembling partials 5,6,7,8 to folder inbox as message 9
	    % mhlist -verbose 9
	     msg part  type/subtype		size description
	       9       application/octet-stream 118K
			 (extract with uncompress | tar xvpf -)
			 type=tar
			 conversions=compress
	    % mhstore -auto 9
	    -- tar listing appears here as files are extracted

       As the second tar listing is generated, the files are extracted.  A prudent user will never put -auto in the .mh_profile file.  The correct
       procedure is to first use mhlist to find out what will be extracted.  Then mhstore can be invoked with -auto to perform the extraction.

FILES

       $HOME/.mh_profile	  The user profile

PROFILE COMPONENTS

       Path:		    To determine the user's nmh directory
       Current-Folder:	    To find the default current folder

SEE ALSO

       mhbuild(1), mhlist(1), mhshow(1), mhstore(1).  Proposed Standard for Message Encapsulation (RFC-934)

DEFAULTS

       `-noverbose'

CONTEXT

       None

MH.6.8								   11 June 2012 						      SENDFILES(1)
All times are GMT -4. The time now is 08:22 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy