How to replace # in particular line?


 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers How to replace # in particular line?
# 1  
Old 01-10-2020
How to replace # in particular line?

Hi All,

I need your help to make the changes through sed , put # in starting of the line in /etc/rsyslog.conf file
please help me

Code:
$ActionExecOnlyWhenPreviousIsSuspended on
&@@10.10.0.10.
& /var/log/localbuffer
$ActionExecOnlyWhenPreviousIsSuspended off

Looking Result ....

Code:
#$ActionExecOnlyWhenPreviousIsSuspended on
#&@@10.10.0.10.
#& /var/log/localbuffer
#$ActionExecOnlyWhenPreviousIsSuspended off

Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!

Last edited by rbatte1; 01-10-2020 at 12:56 PM..
# 2  
Old 01-10-2020
Any attempts / ideas / thoughts from your side?
# 3  
Old 01-10-2020
Yes I tried, but below is the result, which is not exact result.


1. $ActionExecOnlyWhenPreviousIsSuspended on
command-
Code:
sed     's/^$ActionExecOnlyWhenPreviousIsSuspended/#$ActionExecOnlyWhenPreviousIsSuspended/' /etc/rsyslog.conf

Result- #$ActionExecOnlyWhenPreviousIsSuspended on - its done, and fine

2. &@@10.10.10.10
Command
Code:
sed 's/^&@@10.10.10.10/#&@@10.10.10.10/' /etc/rsyslog.conf

Result- #&@@10.10.10.10@@10.10.10.10 - its replacing "#", but its replacing wrong

3. & /var/log/localbuffer
Command- sed 's/^& /var/log/localbuffer/#& /var/log/localbuffer/' /etc/rsyslog.conf
Result- sed: -e expression #1, char 11: unknown option to `s'

4. $ActionExecOnlyWhenPreviousIsSuspended off
Command- sed 's/^$ActionExecOnlyWhenPreviousIsSuspended/#$ActionExecOnlyWhenPreviousIsSuspended/' /etc/rsyslog.conf
Result- #$ActionExecOnlyWhenPreviousIsSuspended off - fine its good

Only problem in 2 & 3 .
so, looking help on this only.

Last edited by RavinderSingh13; 01-10-2020 at 02:06 PM..
# 4  
Old 01-10-2020
Try
Code:
sed 's/^/#/' file

# 5  
Old 01-10-2020
Thanks for reply,but its replacing wrong.
Code:
 sed 's/^&@@10.10.10.10/#&@@10.10.10.10/' /etc/rsyslog.conf
#&@@10.10.10.10@@10.10.10.10- its replacing wrong

Moderator's Comments:
Mod Comment please do wrap your codes into CODE TAGS.

Last edited by RavinderSingh13; 01-10-2020 at 02:05 PM..
# 6  
Old 01-10-2020
Quote:
Originally Posted by yash_message
Thanks for reply,but its replacing wrong.
No, it is not.
Quote:
sed 's/^&@@10.10.10.10/#&@@10.10.10.10/' /etc/rsyslog.conf
That is not what I proposed. Please specify EXACTLY what you need.
# 7  
Old 01-10-2020
Actually the actual sentence is ..
Code:
&@@10.10.10.10

I am looking to change -
Code:
#&@@10.10.10.10

just add # before the line.


Moderator's Comments:
Mod Comment
Please wrap all code, files, input & output/errors in CODE tags.
It makes it easier to read and preserves spaces for indenting or fixed-width data.

Last edited by rbatte1; 01-14-2020 at 01:47 PM..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replace values in script reading line by line using sed

Hi all, Let's say I have a script calling for the two variables PA_VALUE and PB_VALUE. for pa in PA_VALUE blah blah do for pb in PB_VALUE blah blah do I have a text file with two columns of values for PA and PB. 14.5 16.7 7.8 9.5 5.6 3.6 etc etc I would like to read this... (7 Replies)
Discussion started by: crimsonengineer
7 Replies

2. Shell Programming and Scripting

sed command to replace a line in a file using line number from the output of a pipe.

Sed command to replace a line in a file using line number from the output of a pipe. Is it possible to replace a whole line piped from someother command into a file at paritcular line... here is some basic execution flow.. the line number is 412 lineNo=412 Now i have a line... (1 Reply)
Discussion started by: vivek d r
1 Replies

3. Shell Programming and Scripting

Multiple line search, replace second line, using awk or sed

All, I appreciate any help you can offer here as this is well beyond my grasp of awk/sed... I have an input file similar to: &LOG &LOG Part: "@DB/TC10000021855/--F" &LOG &LOG &LOG Part: "@DB/TC10000021852/--F" &LOG Cloning_Action: RETAIN &LOG Part: "@DB/TCCP000010713/--A" &LOG &LOG... (5 Replies)
Discussion started by: KarmaPoliceT2
5 Replies

4. Shell Programming and Scripting

sed command to replace a line at a specific line number with some other line

my requirement is, consider a file output cat output blah sdjfhjkd jsdfhjksdh sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf hellow there this doesnt look good et cetc etc etcetera i want to replace a line of line number 4 ("this doesnt look good") with some other line ... (3 Replies)
Discussion started by: vivek d r
3 Replies

5. Shell Programming and Scripting

I need to know how to replace a line after a pattern match with an empty line using SED

Hi How Are you? I am doing fine! I need to go now? I will see you tomorrow! Basically I need to replace the entire line containing "doing" with a blank line: I need to the following output: Hi How Are you? I need to go now? I will see you tomorrow! Thanks in advance.... (1 Reply)
Discussion started by: sags007_99
1 Replies

6. Emergency UNIX and Linux Support

Find a line using a condition and replace a string in that line

Hello, I have a 100 line code. I have given a sample of it below: ABC*654654*1*54.54*21.2*87*1*654654654654 CCC*FS*FS*SFD*DSF GGG*FGH*CGB*FBDFG*FGDG ABC*654654*1*57.84*45.4*88*2*6546546545 CCC*WSF*SG*FGH*GHJ ADA*AF*SFG*DFGH*FGH*FGTH I need to select the line starting with "ABC" its... (3 Replies)
Discussion started by: nithins007
3 Replies

7. Shell Programming and Scripting

Find a line using a condition and replace a string in that line

Hello, I have a 100 line code. I have given a sample of it below: ABC*654654*1*54.54*21.2*87*1*654654654654 CCC*FS*FS*SFD*DSF GGG*FGH*CGB*FBDFG*FGDG ABC*654654*1*57.84*45.4*88*2*6546546545 CCC*WSF*SG*FGH*GHJ ADA*AF*SFG*DFGH*FGH*FGTH I need to select the line starting with "ABC" its... (6 Replies)
Discussion started by: nithins007
6 Replies

8. Shell Programming and Scripting

sed to replace a line with modified line in same file

i have few lines in a file... i am reading them in a while loop so a particular line is held is $line1.. consider a modified line is held in $line2.... i want to replace $line1 with $line2 in the same file... how to do it..? i have come up till the below code sed "s/$line1/$line2/g" tmpfile.sql... (5 Replies)
Discussion started by: vivek d r
5 Replies

9. Solaris

Line too long error Replace string with new line line character

I get a file which has all its content in a single row. The file contains xml data containing 3000 records, but all in a single row, making it difficult for Unix to Process the file. I decided to insert a new line character at all occurrences of a particular string in this file (say replacing... (4 Replies)
Discussion started by: ducati
4 Replies

10. Shell Programming and Scripting

Need to replace the first word of a line if it occurs again in the next line(shell)

Hi folks, have a look into the attachment, i am not familiar with unix, can you please help me in this regard. thanks in advance, :) regards, Geeko (4 Replies)
Discussion started by: geeko
4 Replies
Login or Register to Ask a Question