Hi all,
I have got a problem while comparing 2 text files and the result should contains the unique values(Non repeatable).
For eg:
file1.txt
1
2
3
4
file2.txt
2
3
So after comaping the above 2 files I should get only 1 and 4 as the output. Pls help me out. (7 Replies)
Hi all,
I have a huge csv file with the following format of data,
Num SNPs, 549997
Total SNPs,555352
Num Samples, 157
SNP, SampleID, Allele1, Allele2
A001,AB1,A,A
A002,AB1,A,A
A003,AB1,A,A
...
...
...
I would like to write out a list of unique SNP (column 1). Could you... (3 Replies)
Hi All,
Is there a way to get NON unique lines from 2 or more concatenated files?
Basically I have several files which are very similar with the exception of few lines and I want to find out which lines are different in each file. Very simple example is
file1 contains:
1
2
3
4
5file2... (122 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Hi,
I would like to compare 2 files, and have a return code write to a file.
regardless of the files contents are the same the code should be writing to a file (if both files contents are same then return code 0).
A simple example will be great :)
Thanks (3 Replies)
hi
i have used comm -13 <(sort 1.txt) <(sort 2.txt) option to get the unique lines that are present in file 2 but not in file 1. but some how i am getting the entire file 2. i would expect few but not all uncommon lines fro my dat. is there anything wrong with the way i used the command?
my... (1 Reply)
hi
my problem is little complicated one. i have 2 files which appear like this
file 1
abbsss:aa:22:34:as akl abc 1234
mkilll:as:ss:23:qs asc abc 0987
mlopii:cd:wq:24:as asd abc 7866
file2
lkoaa:as:24:32:sa alk abc 3245
lkmo:as:34:43:qs qsa abc 0987
kloia:ds:45:56:sa acq abc 7805
i... (5 Replies)
Hello I'm having a little difficulty in writing a shell script for a few simple tasks.
First I have two files "file1.txt" and "file2.txt" and I want to read and compare the last line of each file. The files look like this.
File1.txt
File2.txt
After comparing the two lines I would... (2 Replies)
Hello Everyone!
I have updated the first post so that my intentions are easier to understand, and also attached sample files (post #18).
I have over 500 text files in a directory. Over 1 GB of data. The data in those files is organised in lines:
My intention is to return one line per... (23 Replies)
Hi,
I am trying to script the below, but I am not very good at it :(
Your help would be greatly appreciated.
1. read all files in the directory in strings
strings *.*
2. in each file, for each line that contains "ABCD", store characters located at position 521 and 522 of this line... (9 Replies)
Discussion started by: clippertm
9 Replies
LEARN ABOUT CENTOS
perror
PERROR(1) MySQL Database System PERROR(1)NAME
perror - explain error codes
SYNOPSIS
perror [options] errorcode ...
DESCRIPTION
For most system errors, MySQL displays, in addition to an internal text message, the system error code in one of the following styles:
message ... (errno: #)
message ... (Errcode: #)
You can find out what the error code means by examining the documentation for your system or by using the perror utility.
perror prints a description for a system error code or for a storage engine (table handler) error code.
Invoke perror like this:
shell> perror [options] errorcode ...
Example:
shell> perror 13 64
OS error code 13: Permission denied
OS error code 64: Machine is not on the network
To obtain the error message for a MySQL Cluster error code, invoke perror with the --ndb option:
shell> perror --ndb errorcode
Note that the meaning of system error messages may be dependent on your operating system. A given error code may mean different things on
different operating systems.
perror supports the following options.
o --help, --info, -I, -?
Display a help message and exit.
o --ndb
Print the error message for a MySQL Cluster error code.
o --silent, -s
Silent mode. Print only the error message.
o --verbose, -v
Verbose mode. Print error code and message. This is the default behavior.
o --version, -V
Display version information and exit.
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
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SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
at http://dev.mysql.com/doc/.
AUTHOR
Sun Microsystems, Inc. (http://www.mysql.com/).
MySQL 5.1 04/06/2010 PERROR(1)