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extract particular pattern from a file in shell scripting

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http://stackoverflow.com – I try to extract a particular pattern from a file. the file content: --------some other command in here---------- <tr> <td>someWords</td> <td>anotherWords</td> </tr> --------some other command in here----------- the <tr>...</tr> patter occur again I try to extract the tr pattern from the file in the shell script I write: read INPUT grep '<tr>\n<td>[A-Za-z0-9,<,>,/]</td>\n<td>[A-Za-z0-9,<,>,/]</td>\n</tr> However, this command doesnt work. Any idea? thx (HowTos)

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Submitted by dadebian on 01/19/2013 – Made popular on 01/19/2013

Stories similar to extract particular pattern from a file in shell scripting

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

Here Is a problem I am facing with awk.

Query --> I want to search for a string in a file and print next 15 lines below the matched string.

1.We do not have GNU grep so cannot use grep -A or grep -B commands. 2. Instead of passing the search pattern as a string to awk.

Suppose im in a directory A. which has sub-directories x/y/z m/n/p etc. Iam only considered with those which have a file netl.oa at the lowermost level. So i used the find command which gives me a list in the form

Code: ./abc/def/ghi/jkl/netl.oa and so on Now i want the names abc def jkl and ghi.

pattern searching 34 weeks 5 days ago

Hi,

Can you please help me out here?

I have an XML file, the file is made up of one line.

What I am trying to do is extract the "finalNumber" attribute value from the file via Putty. Rather than having to download a copy and search using notepad++.

I've built up a regular expression that I've tested on an On-line Tool, and tried using it within a sed command to duplicate grep functionality.

How can I instruct expect to look for something like "Generating foo-[pattern].tgz" in the stream and return the pattern so I can use it in future commands?

I find myself repeatedly performing the same actions and would like to automate them using expect. I ssh'ing onto one system and running a script on it that generates a file, then I scp the file from that system onto two other systems.

I got a problem to read standard input file, to edit the standard input, and to write the output to other file.

I've got a problem with my shell scrip, when I ran the shell ./Test1 hello result it suppose to take hello as standard input and result as standard output.

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.