The array S stores all encountered strings (where string is $0 i.e. the current line). At the end of the block it is deleted, so each block is separate.
The following stores the previous value in a simple variable S, and will only suppress adjacent duplicate lines.
The following input file demonstrates the difference:
NB awk uses ERE, and { and } have a special meaning. So it should be \{ and \}.
Then in principal my 1st sample is identical with Rudi's 2nd sample.
Last edited by MadeInGermany; 11-07-2014 at 08:43 AM..
I have a file:
Fred
Fred
Fred
Jim
Fred
Jim
Jim
If sort is executed on the listed file, shouldn't the output be?:
Fred
Fred
Fred
Fred
Jim
Jim
Jim (3 Replies)
Using the last, uniq, sort and cut commands, determine how many times the different users have logged in.
I know how to use the last command and cut command...
i came up with last | cut -f1 -d" " | uniq
i dont know if this is right, can someone please help me... thanks (1 Reply)
Does anyone have a quick and dirty way of performing a sort and uniq in perl?
How an array with data like:
this is bkupArr BOLADVICE_VN
this is bkupArr MLT6800PROD2A
this is bkupArr MLT6800PROD2A
this is bkupArr BOLADVICE_VN_7YR
this is bkupArr MLT6800PROD2A
I want to sort it... (4 Replies)
hi
i have data which is in two columns (such as below). i need to compare two rows against each other and if one row matches the other row (except for different case), and their values in the second column are different, then it prints out one of the rows (either is fine).
here is an... (5 Replies)
Hello,
I have a large data file:
1234 8888 bbb
2745 8888 bbb
9489 8888 bbb
1234 8888 aaa
4838 8888 aaa
3977 8888 aaa
I need to remove duplicate lines (where the first column is the duplicate). I have been using:
sort file.txt | uniq -w4 > newfile.txt
However, it seems to keep the... (11 Replies)
Hi All,
I have a text file with the format shown below. Some of the records are duplicated with the only exception being date (Field 15). I want to compare all duplicate records using subscriber number (field 7) and keep only those records with greater date.
... (1 Reply)
Hi again,
I have files with the following contents
datetime,ip1,port1,ip2,port2,number
How would I find out how many times ip1 field shows up a particular file? Then how would I find out how many time ip1 and port 2 shows up?
Please mind the file may contain 100k lines. (8 Replies)
Hello all,
Need to pick your brains,
I have a 10Gb file where each row is a name, I am expecting about 50 names in total. So there are a lot of repetitions in clusters.
So I want to do a
sort -u file
Will it be considerably faster or slower to use a uniq before piping it to sort... (3 Replies)
Hi All,
Below the actual file which i like to sort and Uniq -u
/opt/oracle/work/Antony/Shell_Script> cat emp.1st
2233|a.k. shukula |g.m. |sales |12/12/52 |6000
1006|chanchal singhvi |director |sales |03/09/38 |6700... (8 Replies)
Discussion started by: Antony Ankrose
8 Replies
LEARN ABOUT DEBIAN
prophet::test
Prophet::Test(3pm) User Contributed Perl Documentation Prophet::Test(3pm)
set_editor($code)
Sets the subroutine that Prophet should use instead of "Prophet::CLI::Command::edit_text" (as this routine invokes an interactive editor)
to $code.
set_editor_script SCRIPT
Sets the editor that Proc::InvokeEditor uses.
This should be a non-interactive script found in t/scripts.
import_extra($class, $args)
in_gladiator($code)
Run the given code using Devel::Gladiator.
repo_path_for($username)
Returns a path on disk for where $username's replica is stored.
repo_uri_for($username)
Returns a file:// URI for $USERNAME'S replica (with the correct replica type prefix).
replica_uuid
Returns the UUID of the test replica.
database_uuid
Returns the UUID of the test database.
replica_last_rev
Returns the sequence number of the last change in the test replica.
as_user($username, $coderef)
Run this code block as $username. This routine sets up the %ENV hash so that when we go looking for a repository, we get the user's repo.
replica_uuid_for($username)
Returns the UUID of the given user's test replica.
database_uuid_for($username)
Returns the UUID of the given user's test database.
ok_added_revisions( { CODE }, $numbers_of_new_revisions, $msg)
Checks that the given code block adds the given number of changes to the test replica. $msg is optional and will be printed with the test
if given.
serialize_conflict($conflict_obj)
Returns a simple, serialized version of a Prophet::Conflict object suitable for comparison in tests.
The serialized version is a hash reference containing the following keys:
meta => { original_source_uuid => 'source_replica_uuid' }
records => { 'record_uuid' =>
{ change_type => 'type',
props => { propchange_name => { source_old => 'old_val',
source_new => 'new_val',
target_old => 'target_val',
}
}
},
'another_record_uuid' =>
{ change_type => 'type',
props => { propchange_name => { source_old => 'old_val',
source_new => 'new_val',
target_old => 'target_val',
}
}
},
}
serialize_changeset($changeset_obj)
Returns a simple, serialized version of a Prophet::ChangeSet object suitable for comparison in tests (a hash).
run_command($command, @args)
Run the given command with (optionally) the given args using a new Prophet::CLI object. Returns the standard output of that command in
scalar form or, in array context, the STDOUT in scalar form *and* the STDERR in scalar form.
Examples:
run_command('create', '--type=Foo');
load_record($type, $uuid)
Loads and returns a record object for the record with the given type and uuid.
as_alice CODE, as_bob CODE, as_charlie CODE, as_david CODE
Runs CODE as alice, bob, charlie or david.
perl v5.10.1 2009-09-02 Prophet::Test(3pm)