Remove a range of lines from a file using sed Post: 302592968

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Top Forums Shell Programming and Scripting Remove a range of lines from a file using sed Post 302592968 by Andy82 on Wednesday 25th of January 2012 10:31:04 AM

01-25-2012

Registered User

Thanks for the feedback. The command is nearly working. I am still having an issue getting sed to stop searching when it finds the second string in the range.

What it should do is.
1. Search the file for the first string in the range. This string will have a unique value for each occurrence in the file. So I am using a variable.
2. Take the lines from the file under the above string until it gets to the second occurrence of the second string in the range. The second string is no unique in the file. This is why I want sed to stop searching when it finds it for the second time after it has found the first string.

File looks like this

1st String. Remove 1
Data
Data
2nd String
2nd String
1st String. Do not remove
Data
Data
2nd String
2nd String
1st String Remove 2
Data
Data
2nd String
2nd String

When I am finished I would want the file to look like

1st String
Data
Data
2nd String
2nd String

When the command runs it removes everything from the file under 1st String. Remove 1

Is this even possible to do in sed? Or should I be looking into using awk. I used sed as I have no experience in Awk and had some in sed.
The code that I am using is as in the second post above

Code:

 sed '/'"${var[$count]}"'/,/'"Con       ST"'q/d' file

Andy82

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xterrormsg

XtErrorMsg(3)						    XT COMPATIBILITY FUNCTIONS						     XtErrorMsg(3)

NAME

       XtErrorMsg, XtSetErrorMsgHandler, XtWarningMsg, XtSetWarningMsgHandler - high-level error handlers

SYNTAX

       void XtErrorMsg(String name, String type, String class, String default, String *params, Cardinal *num_params);

       void XtSetErrorMsgHandler(XtErrorMsgHandler msg_handler);

       void XtSetWarningMsgHandler(XtErrorMsgHandler msg_handler);

       void XtWarningMsg(String name, String type, String class, String default, String *params, Cardinal *num_params);

ARGUMENTS

       class	 Specifies the resource class.

       default	 Specifies the default message to use.

       name	 Specifies the general kind of error.

       type	 Specifies the detailed name of the error.

       msg_handler
		 Specifies the new fatal error procedure, which should not return or the nonfatal error procedure, which usually returns.

       num_params
		 Specifies the number of values in the parameter list.

       params	 Specifies a pointer to a list of values to be stored in the message.

DESCRIPTION

       The XtErrorMsg function has been superceded by XtAppErrorMsg.

       The XtSetErrorMsgHandler function has been superceded by XtAppSetErrorMsgHandler.

       The XtSetWarningMsgHandler function has been superceded by XtAppSetWarningMsgHandler.

       The XtWarningMsg function has been superceded by XtAppWarningMsg

SEE ALSO

       XtAppErrorMsg(3)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11							    libXt 1.1.3 						     XtErrorMsg(3)

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