The pattern file will have around 300 patterns. It is the Input file i.e. the file which has to be grepped which is the worrisome part. It will have around 300,000 unique records. The grep from pattern gave really goofed up results and this is why I posted the request.
Many thanks for your interest
---------- Post updated at 11:22 PM ---------- Previous update was at 08:29 PM ----------
I tested the data on the large file and it worked perfectly, all the more so since the data is in UTF-8 format.
How can I modify the code if I want it to give me only two to three samples from the input file.
I am new to AWK and I tried to change the
operator but could not make it work for a numeric value.
Many thanks again for your kind help
Hi
I have 3 patterns for example to be searched.
These three patterns are available in file1.
The patterns to be searched are in file2.
I want to search the pattern of file1 to file2.
Can any one help with example?
Regards
Dhana (1 Reply)
Hi,
From the pattern mentioned below remove lines based on pattern range.
Conditions
1 Look For all lines starting with ALTER TABLE and Ending with ; and contains the word MOVE.I wanto to remove these lines from the file sample below.
Note : The above pattern list could be found in... (1 Reply)
Good day, great gurus,
I'm new to Perl, and programming in general. I'm trying to retrieve a column of data from my text file which spans a non-specific number of lines. So I did a regexp that will pick out the columns. However,my pattern would vary. I tried using a foreach loop unsuccessfully.... (2 Replies)
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
Hi All, I need to grep few files which has words like the below in the file name , which i want to put it in a file and and grep for the files which contain these names and move it to a new directory ,
full file name -C20091210.1000-20091210.1100_SMGBSC3:1000... (2 Replies)
Hi, I want to list all file that match user input ( specified shell wildcard) but when I compile it dont list me
#!/usr/bin/perl -w
print "Enter Advance Search Function: ";
chomp ($func = <STDIN>);
my @files = glob("$func");
foreach my $file (@files)
{
print "$file\n";... (1 Reply)
How do I use grep to select words that start with I or O, end in box, and contain at least one letter in between them?
the text file mailinfo.txt contains
Inbox
the Inbox
Is a match box
Doesn't match
INBOX
Outbox
Outbox1
InbOX
Ibox
I box
If the command works correctly it... (4 Replies)
When I use the following grep command with options -F and -f, its just displaying the text related to only the last pattern.
Command: $ grep -f pattern_file.txt input_file.txt
Output: doc-C2-16354
Even the following command yields the same output:
Command: $ grep -Ff pattern_file.txt... (6 Replies)
I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string?
For example:
pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern... (5 Replies)