Sed/awk/perl command to replace pattern in multiple lines

Hi everyone, I am new to shell scripting, and would appreciate your help on following problem.

I need to search a file for a pattern, then get the number of each line that matches the given pattern. Then I need to search those specific line numbers from the first file in a second file and print the entire lines.

I tried with grep -n 'pattern' from the first file, which gives me:

21: pat

In a bash script using sed how can I remove a block of lines beginning with -pattern a- and ending with -pattern b- where the the contents contains -pattern c- ( or does NOT contain -pattern c-)?

So :

line 1 -pattern a- line 2 line 3 -pattern b- line 4 -pattern a- line 5 -pattern c- line 6 -pattern b-

In this example I want to remove lines 4,5 and 6 (or remove 1,2 and 3 for not cont

hi I am trying to use SED to replace the line matching a pattern using the command

sed 'pattern c\ new line ' <file1 >file 2

I got two questions

1. how do I insert a blank space at the beginning of new line?

2. how do I use this command to execute multiple command using the -e options (if possible)? as I want to replace multiple lines in a single file.

Thanks Robert

Hi All,

i'm writing a script where i have to grep for a pattern and the 3 lines after the pattern and comment them out.

Note that i have to do this for multiple files, i am able to grep the pattern and the next 3 lines but since solaris does not recognize the -i option, i was wondering if there was any workaround.

I have an MRTG configuration file containing some lines starting with the word "Target". Now in such lines there is a pattern starting with the character "#" and end with character ":".

Hi friends,

I am looking for sed command/script that would search for a given fixed pattern on odd lines and then if it matches, prints the matching pattern and the next line.

Hi Im trying to do the following in sed. I want to delete any blank line at the start of a file until it matches a pattern and then stops.

I need to remove lines from a text file based on pattern but I need to keep the first n lines of that pattern.

Input

% 1 % 2 % 3 % 4 % 5 text1 text2 text3

output

%1 %2 text1 text2 text3

I used sed /^%/d file but it deletes all the lines starting with %, sed 3,/^%/d doesn't help either. I need to keep first n lines of the pattern and delete the rest

I have data that looks similar to this -

Quote:

John Smith (Address) 123 Main St Unit 1 Los Angeles, CA 90201 Jane Smith (Address) 321 Elm St Denver, CO 80201

So I need everything between each name, but I am not guaranteed that each time I match a name that I will have the same amount of lines, so I do a range pattern search line this to get all lines, no matte