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Hi.
Quote:
Originally Posted by radoulov
... it seems it works with ERE's too ...
Re-reading the man page for GNU grep, it looks like backreferences do not require the -P option. However, version 2.5.1 fails with egrep and a backreference, so perhaps that's an error that was fixed in later versions.
I think you all understood the problem better than I did. I assumed that matches with the same title, e.g. "Mr" should be omitted, and that "Mr" and "Miss" on the same line, for example, would be allowed. This is, for me at least, another good lesson on writing and reading requirements, along with sufficient examples.
So far, I like your solution:
the best. It's concise and makes good use of awk features. I often forget that awk allows regular expressions as field separators ... cheers, drl
Last edited by radoulov; 10-26-2008 at 09:23 AM..
Reason: my spelling: seam -> seem
[...]
I think you all understood the problem better than I did. I assumed that matches with the same title, e.g. "Mr" should be omitted, and that "Mr" and "Miss" on the same line, for example, would be allowed. This is, for me at least, another good lesson on writing and reading requirements, along with sufficient examples.
[...]
I believe you've got it right and I have not ...
I think that this should give the correct result:
And I still don't understand why the command below returns a different result:
In the awk below, what I am attempting to do is check each line in the tab-delimeted input, which has ~20 lines in it, for a keyword
SVTYPE=Fusion. If the keyword is found I am splitting $3 using the . (dot) and reading the portion before and after the dot in an array a.
If it does have that... (12 Replies)
URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
- Currently, script is not printing lines to File3.txt in order.
- Also the matching lines are not moving out of File1.txt
... (1 Reply)
Data file example
I look for primary and * to isolate the interesting slot number.
slot=`sed '/^primary$/,/\*/!d' filename | tail -1 | sed s'/*//' | awk '{print $1" "$2}'`
Now I want to get the Touch line for only the associate slot number, in this case, because the asterisk... (2 Replies)
Hi,
I wanted to grep string "ERROR" and "WORNING" after last occurrence of String "Starting" only and wanted to display two lines after searched ERROR and WORNING string and one line before. I have following cronjob log file "errorlog" file and I have written the code for same in Unix as below... (17 Replies)
Hello,
I need an awk command to print only the lines that match regex on xth field from file.
For example if I use this command
awk -F"|" ' $22 == "20130117090000.*" 'It wont work, I think, because single quotes wont allow the usage of the metacharacter star * . On the other hand I dont know... (2 Replies)
Hello, can someone help me how to find a word and 2 lines after it and then send the output to another file.
For example, here is myfile1.txt. I want to search for "Error" and 2 lines below it and send it to myfile2.txt
I tried with grep -A but it's not supported on my system.
I tried with awk,... (4 Replies)
Hi Guys,
I am new to awk and sed, i am working multiline document, i want to make make that document into SINGLE lines based on occurace of string "dwh".
here's the sample of my problem..
dwh123 2563 4562 4236 1236 78956 12394 4552 dwh192 2656 46536 231326 65652 6565 23262 16625623... (5 Replies)
Hi folks,
I have a text file that I need to parse, and I cant figure it out. The source is a report breaking down softwares from various companies with some basic info about them (see source snippet below). Ultimately what I want is an excel sheet with only Adobe and Microsoft software name and... (5 Replies)
I have a fixed length file in the following format
<date><product_code><other data>
The file size is huge and I have to extract only the lines that match a certain product code which is of 2 bytes length. I cannot use normal grep since that may give undesirable results. When I search for prod... (5 Replies)