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Top Forums Shell Programming and Scripting sed pattern matching question Post 302518169 by ddreggors on Thursday 28th of April 2011 07:13:17 PM
Old 04-28-2011
No, they are literals.

From what I can tell the whole string (ABCD|/p) is a literal. With the wildcard (*), beginning of line ('^'), and end of line ('$') being the only regex.

This basically does these 4 operations:

1. Match any character from beginning of line up to and including 'ABCD|/p' and only print the matching lines.

2. Take the output from the previous sed command and them match from beginning of line any character up to and inclusing the string literal 'ABCD|' and remove the matching string from the output.

3. Take the output from the previous sed command and them match the string literal '|ABCD' if it is at the end of the line and remove it.

4. Output the results to a file named ${fileName}.tmp

Example:

File (test.txt) Contents:
Code:
sldns;jnfd
dddghgdhgABCD|/p|test line 1
ABCD|/p|test line 2
This is|ABCD|/p|test line 3
abcdsnalfnalfsg

Command (output to screen and not a file):
Code:
sed -n -e '/^.*ABCD|/p' test.txt |sed -e 's/^.*ABCD|//' | sed -e 's/|ABCD$//'

Results:
Code:
/p|test line 1
/p|test line 2
/p|test line 3

 

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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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