Hi,
May I know, if a pipe separated File is large, what is the best method to calculate the unique row count of 3rd column and get a list of unique value of the 3rdcolum?
Thanks in advance! (20 Replies)
I'm loading multiple delimited files into an Oracle DB using sqlldr on Unix. I would like to get only the most recent record per each unique key. There may be multiple updates for each key, but I only want the most recent one.
There is a date column in my delimited files, so I'm using cat to... (2 Replies)
if i am in /tmp file, and i have a few DIRs under /tmp. i want to find the biggest and most recent files (from 7 days ago) in /tmp and subfolders. (3 Replies)
Input file
---------
12:name1:|host1|host1|host2|host1
13:name2:|host1|host1|host2|host3
14:name3:
......
Required output
---------------
12:name1:host1(2)|host1(1)
13:name2:host1(2)|host2(1)|host3(1)
14:name3:
where (x) - Count how many times field appears in last column
... (3 Replies)
Hello, i develop a shell unix program and i have a csv file. every time we have 5 identical lines in the first 3 columns in the fourth column can be different and the 5th too. In the 5th I have a date in yyyy / mm / dd. I want to do a sort on the 5 lines and keep only the line where there is the... (7 Replies)
I have a file with contents below
123,502
123,506
123,702
234,101
235,104
456,104
456,100
i want to sort such that i get a unique value in column A, and for those with multiple value in A, i want the lowest value in B.
output should be
123,502
234,101
235,104
456,100 (3 Replies)
I have another file with three columns A,B,C as below
123,1,502
123,2,506
123,3,702
234,4,101
235,5,104
456,6,104
456,7,100
i want to sort such that i get a unique value in column A, and for those with multiple value in A, i want the lowest value in C.
output should be
Code:... (3 Replies)
I would like to print unique lines without sort or unique. Unfortunately the server I am working on does not have sort or unique. I have not been able to contact the administrator of the server to ask him to add it for several weeks. (7 Replies)
Hello Team,
I need your help on the following:
My input file a.txt is as below:
3330690|373846|108471
3330690|373846|108471
0640829|459725|100001
0640829|459725|100001
3330690|373847|108471
Here row 1 and row 2 of column 1 are identical but corresponding column 2 value are... (4 Replies)
Hi,
I have an input file that I have sorted in a previous stage by $1 and $4. I now need something that will take the first record from each group of data based on the key being $1
Input file
1000AAA|"ZZZ"|"Date"|"1"|"Y"|"ABC"|""|AA
1000AAA|"ZZZ"|"Date"|"2"|"Y"|"ABC"|""|AA... (2 Replies)
Discussion started by: Ads89
2 Replies
LEARN ABOUT HPUX
bdb.db0
BDB.DB0(5) AFS File Reference BDB.DB0(5)NAME
bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log
DESCRIPTION
The bdb.DB0 file contains the Backup Database, which records configuration information used by the AFS Backup System along with cross-
indexed records of the tapes created and volumes dumped using the Backup System commands.
The bdb.DBSYS1 file is a log file in which the Backup Server (buserver process) logs each database operation before performing it. When an
operation is interrupted, the Backup Server replays the log to complete the operation.
Both files are in binary format and reside in the /var/lib/openafs/db directory on each database server machine that runs the Backup
Server. When the Backup Server starts or restarts on a given machine, it establishes a connection with its peers and verifies that its
copy of the bdb.DB0 file matches the copy on the other database server machines. If not, the Backup Servers use AFS's distributed database
technology, Ubik, to distribute to all of the machines the copy of the database with the highest version number.
Use the commands in the backup suite to administer the Backup Database. It is advisable to create a backup copy of the bdb.DB0 file on tape
on a regular basis, using the UNIX tar command or another local disk backup utility.
SEE ALSO backup(8), backup_savedb(8), buserver(8)COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas
Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
OpenAFS 2012-03-26 BDB.DB0(5)