Sponsored Content
Top Forums Shell Programming and Scripting Another sed Syntax Puzzle . . . Post 302918806 by Don Cragun on Thursday 25th of September 2014 03:30:39 PM
Old 09-25-2014
As long as there is a blank line following the segment you want to delete, the following should work:
Code:
sed '/^Something: Object[[:space:]]*$/,/^[[:space:]]*$/d' file

but this won't work if there is no blank line after the segment you want to remove (such as if it is the last segment in the file). If you also want to be able to delete that text if is is the last segment in the file and it doesn't have a blank line following it in that case, I find awk easier to use:
Code:
awk '
/^Something: Object[[:space:]]*$/ { del = 1 }
!del
/^[[:space:]]*$/ {del = 0}
' file

As always, if you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.
This User Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

sed syntax

Hi, How can i use sed command to modify a part of a variable containing "/" by another containing "/" like describe below: VAR="/app/share/eai" VAR1="/app/share" VAR2="/data/test" echo $VAR | sed 's/... ??? # using sed to replace $VAR1 in $VAR by $VAR2 ? (4 Replies)
Discussion started by: jo_aze
4 Replies

2. Shell Programming and Scripting

Help for Sed Syntax problem

I have one File named "txt_file" # cat txt_file <DBType>RT</DBType> <AppType>RT</AppType> -------------------------------------------------- I want replace "<AppType>RT</AppType>" to <AppType>XY</AppType> in txt_file and output redirect to Newfile ... (2 Replies)
Discussion started by: SanjayLinux
2 Replies

3. Shell Programming and Scripting

syntax for variables in sed

I always kind of wondered this but I have a variable that I want to use in a search and replace. Basically I want to search a file for the string in my variable and replace it with something fixed but I'm unsure of the variable rule in sed. Here's generally what I have: sed 's/$name/newname/g'... (15 Replies)
Discussion started by: eltinator
15 Replies

4. Shell Programming and Scripting

What syntax to use with sed c\

I know that I want to entirely replace line 3 in my file filename.txt. I have tried all sorts of variations of sed 3,3,c\replacement stuff\ filename.txt with no success. about the only thing that causes any reaction is sed 3,3c\\ filename.txt but it just prints out the whole file. ... (13 Replies)
Discussion started by: SusanDAC
13 Replies

5. Shell Programming and Scripting

Explain following sed syntax please

Thanks to this forum I have managed to work out a solution to my problem and actually understand most of it, but one thing is confusing me and I am sure someone here can explain. I need to insert a piece of txt into a file. This txt is awk '{ sub(/$/,"\r"); print }' $JCL_WBB50103_EFTOUT >... (2 Replies)
Discussion started by: hukcjv
2 Replies

6. Shell Programming and Scripting

sed - multi-line regex syntax eval puzzle

sed novice bashing away at this.... I am trying to build a sed script that will find the instances of "cn" that have more than one "DirXML" value on them.... see sample below: I am not having any luck with any variation that tries to find "DirXML.*\nDirXML.*". Isn't there a way to get sed to... (6 Replies)
Discussion started by: gosleddog
6 Replies

7. UNIX for Dummies Questions & Answers

sed - need help for syntax

Hello, here is what I've got : FILE='/OPERATIONNEL/SATURNE/CHAMPS/MASTER/ANA/SATURNE_1DAV_20080805_20080806_S3D_T_R20080806.NC ';;... (4 Replies)
Discussion started by: Aswex
4 Replies

8. Shell Programming and Scripting

sed s/// syntax help

<tr><td width=10% style='width:5%;background:#F7F0D9;padding:0in 0in 0in 0in 0in'><center><b>Package</b></td><td width=10% valign=center style='width:5%;background:#F7F0D9;padding:0in 0in 0in 0in 0in'><center><b>JTs</b></td> This is got to be simple. I run this on the above .html file: sed... (8 Replies)
Discussion started by: dba_frog
8 Replies

9. Shell Programming and Scripting

sed syntax error

Hi, In the following excerpt of shell script code: I could not understand the sed syntax. Could anyone shed some light on this? configure_ssl() { jboss_conf_file=$1 echo "Configuring SSL for -" ${jboss_conf_file} isSSLSetup=`echo cat ${jboss_conf_file} | grep <Connector... (2 Replies)
Discussion started by: royalibrahim
2 Replies

10. UNIX for Dummies Questions & Answers

Can sed use a file on the syntax?

Dear all, I need help, again. I would like to use a sed on a for. Is is possible to ask sed to call a file in the syntax? For exemple: sed "/Y/ s/number/X/" test_imput > test_output where Y is a file which inside there is one pattern only; Also X is a file with one... (6 Replies)
Discussion started by: lColli
6 Replies
ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME
ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices SYNOPSIS
/usr/ucb/ucblinks [-e rulebase] [-r rootdir] DESCRIPTION
ucblinks creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi- ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry. ucblinks does not remove unneeded compatibility links; these must be removed by hand. ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been created, since the reconfiguration may have resulted in more compatibility names being needed. In releases prior to SunOS 5.4, ucblinks used a nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses nawk for the default operation, although nawk rule-bases can still be specifed with the -e option. The nawk rule-base equivalent to the SunOS 5.4 default operation can be found in /usr/ucblib/ucblinks.awk. OPTIONS
-e rulebase Specify rulebase as the file containing nawk(1) pattern-action statements. -r rootdir Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /. FILES
/usr/ucblib/ucblinks.awk sample rule-base for compatibility links ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5) SunOS 5.10 13 Apr 1994 ucblinks(1B)
All times are GMT -4. The time now is 04:50 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy