There are two expressions in the code,
the first one is:
If the current record matches the pattern ABC[13]AND the value returned by the assignment of the value of the second field to the variable h is true - print the record.
OK, I'm cheating here, it's a shortcut that will fail if the value of $2 is 0, on the other hand, if that value could never be 0, there's less code to write (the fact is that we don't care what's the return value of the assignment, we just need to print those records and save the value of $2).
So we print the records ABC1, ABC3 and save the numeric part of the header in the h variable.
The second expression is:
We build an associative array keyed by the concatenated values of the previously saved header number, the second and the third field. The values are an auto-incremented integers.
When the value is 1, we print the record, because we see it for the second time (the first time we see a key, the value is 0 (because of the post-incrementing operator).
hi,
I have a 20 line file.
I need a command which will brinf back a specific line based upon the line number I enter.
e.g. the file looks like this and is called file1
jim is a man
john is a woman
james is a man
wendy is a woman
lesley is a woman
i want a command that will... (4 Replies)
hello all,
I have a file like this:
section 1
blah1
blah2
section 2
blah1
blah2
section 3
blah1
blah2
and I want to use sed to duplicate section 2, like this:
section 1
blah1
blah2
section 2
blah1
blah2
section 2
blah1 (2 Replies)
A typical line looks like this...
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=129 COMMENT='Compiled E-Mails';I want to remove DEFAULT CHARSET= and COLLATE= after resetting AUTO_INCREMENT=0
I do not want to change the engine and comment. (7 Replies)
Hi
I am using "grep" command to get certain pattern out of the file:
PNUM=34
$ grep -w "#${PNUM}" myfile
#34 * 2297 * 410 * 964 * * 4352
$
Is there a way to retrieve the section of the above output without #34 so the output would look like this:... (3 Replies)
Hello,
I am in need of removing duplicate lines from within a file per section.
File:
ABC1 012345 header
ABC2 7890-000
ABC3 012345 Header Table
ABC4
ABC5 593.0000 587.4800
ABC5 593.5000 587.6580 <= dup need to remove
ABC5 593.5000 ... (5 Replies)
Hello,
I need help in putting duplicate lines within a section into another file. Here is what I'm struggling with:
Using this file data.txt:
ABC1 012345 header
ABC2 7890-000
ABC3 012345 Header Table
ABC4
ABC5 593.0000 587.4800
ABC5 593.5000 587.6580 <= dup need to remove
ABC5... (4 Replies)
I have a list of Servers in no particular order as follows:
virtualMachines="IIBSBS IIBVICDMS01 IIBVICMA01"And I am generating some output from a pre-existing script that gives me the following (this is a sample output selection).
9/17/2010 8:00:05 PM: Normal backup using VDRBACKUPS... (2 Replies)
I have searched in a variety of ways in a variety of places but have come up empty.
I would like to prepend a portion of a section header to each following line until the next section header. I have been using sed for most things up until now but I'd go for a solution in just about anything--... (7 Replies)
Hi,
i have a file like this:
...
11111111
22222222
33333333
#
4444444
5555555
6666666
7777777
#
...
i want just print the 2 first line between each section (each section is separated with "#"). so desired output would be like this:
...
11111111
22222222 (3 Replies)
Hi Gurus,
I have below file which has different sections, need to move the sections to beginning of the each record.
original file
aaa
bbb
ccc
ddd
eee
fff
output file.
aaa
bbb
ccc
ddd
eee
fff (6 Replies)