Hi, I have a huge file which is about 50GB. There are many lines. The file format likes
The question is that there are a few duplicate rows. The definition of the duplicate is meant the second column is repeated. It doesn't mean the entire line are exactly same, just the the second column.
In the above example, line 3 and 4 can be defined as duplicate. The have the same string
We can remove either of them.
The delimeter could be a white space or tab.
After remove the duplicate lines the result will be saved in a new file.
I am doing KSH script to remove duplicate lines in a file. Let say the file has format below.
FileA
1253-6856
3101-4011
1827-1356
1822-1157
1822-1157
1000-1410
1000-1410
1822-1231
1822-1231
3101-4011
1822-1157
1822-1231
and I want to simply it with no duplicate line as file... (5 Replies)
I have following file content (3 fields each line):
23 888 10.0.0.1
dfh 787 10.0.0.2
dssf dgfas 10.0.0.3
dsgas dg 10.0.0.4
df dasa 10.0.0.5
df dag 10.0.0.5
dfd dfdas 10.0.0.5
dfd dfd 10.0.0.6
daf nfd 10.0.0.6
...
as can be seen, that the third field is ip address and sorted. but... (3 Replies)
I have a log file "logreport" that contains several lines as seen below:
04:20:00 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but responded to ping
06:38:08 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but responded to ping
07:11:05 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but... (18 Replies)
Hi,
I came to know that using awk '!x++' removes the duplicate lines. Can anyone please explain the above syntax. I want to understand how the above awk syntax removes the duplicates.
Thanks in advance,
sudvishw :confused: (7 Replies)
Hello Folks,
Can some one help me with the removal of duplicate lines from a log file and send it to another log file. It's bit complicated as two lines are same but only difference is the timestamp, but some lines are uniq. Line has been seperated by colon's.
Log file:... (5 Replies)
hi to all
Does anyone know if there's a way to remove duplicate lines which we consider the same only if they have the first and the second column the same?
For example I have :
us2333 bbb 5
us2333 bbb 3
us2333 bbb 2
and I want to get
us2333 bbb 10
The thing is I cannot... (2 Replies)
Hi,
I have a csv file which contains some millions of lines in it.
The first line(Header) repeats at every 50000th line. I want to remove all the duplicate headers from the second occurance(should not remove the first line).
I don't want to use any pattern from the Header as I have some... (7 Replies)
Within my text file i have several thousand lines of text with some lines containing duplicate strings/words. I would like to entirely remove those lines which contain the duplicate strings.
Eg;
One and a Two
Unix.com is the Best
This as a Line Line
Example duplicate sentence with the word... (22 Replies)
Hi All,
I am storing the result in the variable result_text using the below code.
result_text=$(printf "$result_text\t\n$name") The result_text is having the below text. Which is having duplicate lines.
file and time for the interval 03:30 - 03:45
file and time for the interval 03:30 - 03:45 ... (4 Replies)
Discussion started by: nalu
4 Replies
LEARN ABOUT HPUX
aclsort
aclsort(3C)aclsort(3C)NAME
aclsort() - sort an Access Control List (JFS File Systems only)
SYNOPSIS DESCRIPTION
The routine sorts JFS Access Control List (ACL) entries into the correct order to be accepted by the acl(2) system call.
points to a buffer containing ACL entries; if non-zero, indicates that the permissions should be recalculated; and specifies the number of
ACL entries in the buffer.
sorts the contents of the ACL buffer as follows:
Entries will be in order and
Entries of type and will be sorted in increasing order by numeric ID.
The call will succeed if all of the following are true:
There is exactly one entry each of type and
There is at most one entry each of type and
Entries of type or may not contain duplicate entries. A duplicate entry is one of the same type containing the same numeric id,
irrespective of permission bits.
If the argument is zero and there are no entries of type and no entries of type the permissions of the and entries must be the same.
If there are no entries of type and no entries of type and the entry is specified, then the entry must also be specified, and the
permissions of the and entries must be the same.
RETURN VALUE
Upon successful completion, the return value is 0. If there are duplicate entries, the return value is the position of the first duplicate
entry. If there is more than one entry of type or they are treated as duplicate entries, and the return value is the position of the first
duplicate entry. For all other errors, the return value is -1.
NOTICES
The buffer is sorted by type and ID before checking for any failures. Therefore the buffer is always sorted, even if there is a failure.
The position of a duplicate entry returned on failure is not the byte offset of the duplicate entry from its base; rather it refers to the
entry number of the duplicate entry within the sorted buffer.
Checks will be performed in order of entry type. If there are multiple failures, the failure returned will be the first encountered, for
example, if the ACL buffer contains a duplicate entry and does not contain an entry, the return value will be the first duplicate entry.
ACLs do not have to be sorted with prior to passing them to acl(2).
DEPENDENCIES
is supported only on JFS file systems on the standard HP-UX operating system.
AUTHOR
was developed by AT&T.
SEE ALSO acl(2), aclv(5).
aclsort(3C)