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Full Discussion: sed: hold buffer question
Top Forums Shell Programming and Scripting sed: hold buffer question Post 302504461 by cjcox on Monday 14th of March 2011 04:35:04 PM
Old 03-14-2011
Assume your text is:

Code:
Move me1

Keep me1

Append to me1

Move me2

Keep me2

Append to me2

Move me3

Keep me3

Append to me3

Then a sed script like:

Code:
/^Move me/h
/^Move me/d
/^Append to me/b a
b
:a {
G
}

english:
For lines beginning with Move me, put them into the hold buffer.
For lines beginning with Move me, delete them (remember we have it in the hold buffer).
For lines beginning with Append to me, branch to label a
For all else, just default, print and read next
At label a, append the hold buffer to the pattern space... it then goes to default, print and read next


Would produce an output like:

Code:
Keep me1

Append to me1
Move me1


Keep me2

Append to me2
Move me2


Keep me3

Append to me3
Move me3

Am I getting close to what you were wanting??
 

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NWBPSET(1)							      nwbpset								NWBPSET(1)

NAME
nwbpset - Create a bindery property or set its value SYNOPSIS
nwbpset [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] DESCRIPTION
nwbpset Reads a property specification from the standard input and creates and sets the corresponding property. The format is determined by the output of 'nwbpvalues -c'. nwbpset will hopefully become an important part of the bindery management suite of ncpfs, together with As another example, look at the following command line: nwbpvalues -t 1 -o supervisor -p user_defaults -c | sed '2s/.*/ME/'| sed '3s/.*/LOGIN_CONTROL/'| nwbpset With this command, the property user_defaults of the user object 'supervisor' is copied into the property login_control of the user object 'me'. nwbpvalues -t 1 -o me -p login_control -c | sed '9s/.*/ff/'| nwbpset This command disables the user object me. Feel free to contribute other examples! nwbpset looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information. Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons. OPTIONS
-h -h is used to print out a short help text. -S server server is the name of the server you want to use. -U user user is the user name to use for login. -P password password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwbpset prompts for a password. -n -n should be given if no password is required for the login. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. AUTHORS
nwbpset was written by Volker Lendecke. See the Changes file of ncpfs for other contributors. nwbpset 8/7/1996 NWBPSET(1)
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