This seemed to work but I noticed that there seem to be a few duplicated left behind. How does the array know what the delimiter? $3 is the field, but not clear on delimiter. Would the same work with tabs for delimiter?
I have a file which looks like
AA BB CC DD EE FF GG HH KK
AA BB GG HH KK FF CC DD EE
AA BB CC DD EE UU VV XX ZZ
AA BB VV XX ZZ UU CC DD EE
....
I want the script to give me only one line based on duplicate contents:
AA BB CC DD EE FF GG HH KK
AA BB CC DD EE UU VV XX ZZ (7 Replies)
Hi Guys...
Please Could you help me with the following ?
aaaa bbbb cccc sdsd
aaaa bbbb cccc qwer
as you can see, the 2 lines are matched in three fields...
how can I delete this pupicate ? I mean to delete the second one if 3 fields were duplicated ?
Thanks (14 Replies)
I have million's of records each containing exactly 50 characters and have to check the uniqueness of 4 character substring of 50 character (postion known prior) and report if any duplicates are found.
Eg. data...
AAAA00000000000000XXXX0000 0000000000... upto50 chars... (2 Replies)
Hi team,
I have 20 columns csv files. i want to find the duplicates in that file based on the column1 column10 column4 column6 coulnn8 coulunm2 . if those columns have same values . then it should be a duplicate record.
can one help me on finding the duplicates,
Thanks in advance.
... (2 Replies)
I have an input file abc.txt with info like:
abcd
rateuse
inklite
robet
rateuse
abcd
I need to remove duplicates from the file (eg: abcd,rateuse) from the file and need to place the contents in same file abc.txt if needed can be placed in another file.
can anyone help me in this :( (4 Replies)
Hi All ,
I have a requirement where I need to remove duplicates from a fixed width file which has multiple key columns .Also , need to capture the duplicate records into another file .
File has 8 columns.
Key columns are col1 and col2.
Col1 has the length of 8 col 2 has the length of 3.
... (5 Replies)
Hi,
I have a requirement.for eg: i have a text file with pipe symbol as delimiter(|) with 4 columns a,b,c,d. Here a and b are primary key columns..
i want to process that file to find the duplicates and null values are in primary key columns(a,b) . I want to write the unique records in which... (5 Replies)
Hi guys,Got a bit of a bind I'm in. I'm looking to remove duplicates from a pipe delimited file, but do so based on 2 columns. Sounds easy enough, but here's the kicker...
Column #1 is a simple ID, which is used to identify the duplicate.
Once dups are identified, I need to only keep the one... (2 Replies)
Hello Gurus,
I have a multiple pipe separated files which have records going over multiple Lines. End of line separator is \n and records going over multiple lines have <CR> as separator. below is example from one file.
1|ABC DEF|100|10
2|PQ
RS
T|200|20
3| UVWXYZ|300|30
4| GHIJKL|400|40... (7 Replies)
Discussion started by: dJHa
7 Replies
LEARN ABOUT FREEBSD
ddb
DDB(8) BSD System Manager's Manual DDB(8)NAME
ddb -- configure DDB kernel debugger properties
SYNOPSIS
ddb capture [-M -core] [-N -system] print
ddb capture [-M -core] [-N -system] status
ddb script scriptname
ddb script scriptname=script
ddb scripts
ddb unscript scriptname
ddb pathname
DESCRIPTION
The ddb utility configures certain aspects of the ddb(4) kernel debugger from user space that are not configured at compile-time or easily
via sysctl(8) MIB entries.
To ease configuration, commands can be put in a file which is processed using ddb as shown in the last synopsis line. An absolute pathname
must be used. The file will be read line by line and applied as arguments to the ddb utility. Whitespace at the beginning of lines will be
ignored as will lines where the first non-whitespace character is '#'.
OUTPUT CAPTURE
The ddb utility can be used to extract the contents of the ddb(4) output capture buffer of the current live kernel, or from the crash dump of
a kernel on disk. The following debugger commands are available from the command line:
capture [-M core] [-N system] print
Print the current contents of the ddb(4) output capture buffer.
capture [-M core] [-N system] status
Print the current status of the ddb(4) output capture buffer.
SCRIPTING
The ddb utility can be used to configure aspects of ddb(4) scripting from user space; scripting support is described in more detail in
ddb(4). Each of the debugger commands is available from the command line:
script scriptname
Print the script named scriptname.
script scriptname=script
Define a script named scriptname. As many scripts contain characters interpreted in special ways by the shell, it is advisable to
enclose script in quotes.
scripts
List currently defined scripts.
unscript scriptname
Delete the script named scriptname.
EXIT STATUS
The ddb utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The following example defines a script that will execute when the kernel debugger is entered as a result of a break signal:
ddb script kdb.enter.break="show pcpu; bt"
The following example will delete the script:
ddb unscript kdb.enter.break
For further examples, see the ddb(4) and textdump(4) manual pages.
SEE ALSO ddb(4), textdump(4), sysctl(8)HISTORY
The ddb utility first appeared in FreeBSD 7.1.
AUTHORS
Robert N M Watson
BUGS
Ideally, ddb would not exist, as all pertinent aspects of ddb(4) could be configured directly via sysctl(8).
BSD December 24, 2008 BSD