I dont want to generate another file (or) change the input file.
I need to read the records which are sorted to store in variables.
when I print I need to get the sorted records...so the rows should be sorted by $usrId
I will use the sorted records and do some functionality to generate few other files.
Last edited by Franklin52; 12-14-2012 at 03:31 AM..
Reason: Please use code tags for data and code samples
I am trying to open a file and check a record. The file has 543267 records and I want to check the record 514455. I am trying to open in vi and go to that line
:514455 but i get the error not enough lines in buffer
How should i overcome this? Please help. (6 Replies)
Hi,
I am new to scripting. I need a script to sort and the records in a file and then split them into different files.
For example, the file is:
H1......................
H2......................
D2....................
D2....................
H1........................... (15 Replies)
Hi all,
I have a requirement where I need to read records one by one from a file. I have tried this below code:
while read mLine
do
echo 'Line = '${mLine}
done < input_file
--- But the problem here is im getting the records with removed spaces.
--Supposer if the record is like... (3 Replies)
i am reading an i/p file input.txt as below and want to read all filenames as in highlighted in bold below and put them in a different file output.txt. can someone help me with a shell script to do this? thanks in advance
regards
brad
input.txt
---------
START
TYPE:OPT
INIT_SEQ:01... (8 Replies)
hi,
I'm trying to sort a file which has 3.7 million records an gettign the following error...any help is appreciated...
sort: Write error while merging.
Thanks (6 Replies)
Hi,
I have 10000 records in my test.dat file
All records are under the following format
a,12,45,bn,c
a,16,46,bn1,c
a,18,47,bn2,c
a,12,47,bn3,c
a,11,49,bn4,c
I have to read each 2 records and assign it into a temp file
.Can anybody help me in this?
Thanks (3 Replies)
Hi all,
I So, I've got a monster text document comprising a list of various company names and associated info just in a long list one after another. I need to sort them alphabetically by name...
The text document looks like this:
Company Name:
the_first_company's_name_here
Address:... (2 Replies)
Hello!
Is there a way i can read a file with n records as one big string using linux shell script? I have a file in the below format -
REC1
REC2
REC3
.
.
.
REC4
Record length is 3000 bytes per record and with a newline char at the end. What i need to do is
- read this file as one... (5 Replies)
I need a script that will run in unix to:
1) Read and input file with 1 column that contains for ex:
0123456789
1234567890
...etc
2) Checks the first column if it is:
a. Numeric from 0 - 9
b. if it is not less... (4 Replies)
Hi All
Can anybody let me know the code to read a particular record from a file
For e.g.
File Name: File.txt
File content:
Script_path=/abc/def/script/
File_path=/xyz/data/
Business Date=19990905
SERVER_NAME=Server
DATABASE_NAME=Database
Login=NewUser
Password=NewPassword
... (3 Replies)
Discussion started by: Siddhartha9833
3 Replies
LEARN ABOUT DEBIAN
readahead
readahead(8) System Manager's Manual readahead(8)NAME
readahead - file preloader for boot process optimization
SYNOPSIS
readahead [options] <file-list> [another-file-list [...]]
DESCRIPTION
readahead is a files preloader designed to optimize the disk I/O during the boot process.
OPTIONS -b, --build
build optimised files list only, without sorting.
-s, --sort
build and sort list of files only (implies -b).
-o, --output <file>
write sorted list of files to file.
-d, --dont-sort
preload files described by an already sorted files list.
-h, --help
print the usage information.
-v, --verbose
enable the verbose mode.
-t, --timing
report time spent on each operation.
-m, --maxsize <max size>
maximum size in KiB a file can be in order to be preloaded, default is 10240.
<file-list> [another-file-list [...]]
One or more files containing the list of files to be preloaded or sorted. The files list can be generated by readahead-collector(8).
FILES
/etc/default/readahead-fedora
SEE ALSO readahead-collector(8), readahead(2),
AUTHORS
Arjan van de Ven <arjan@infradead.org>,
Ziga Mahkovec <ziga.mahkovec@klika.si>, Karel Zak <kzak@redhat.com>,
This manual page was written by Raphael Geissert <geissert@debian.org>
July 2011 readahead(8)