Bash script search, improve performance with large files
Hello,
For several of our scripts we are using awk to search patterns in files with data from other files. This works almost perfectly except that it takes ages to run on larger files. I am wondering if there is a way to speed up this process or have something else that is quicker with the searching.
The part that i use is as follows:
I got this piece of programming also from this forum but i added the tolower part myself since not always it seem to get all results from the main file. 1 important part is that the results from filtering need to be saved in another file. The filtered file only contains the not found lines of course.
hi someone tell me which ways i can improve disk I/O and system process performance.kindly refer some commands so i can do it on my test machine.thanks, Mazhar (2 Replies)
I have a data file of 2 gig
I need to do all these, but its taking hours, any where i can improve performance, thanks a lot
#!/usr/bin/ksh
echo TIMESTAMP="$(date +'_%y-%m-%d.%H-%M-%S')"
function showHelp {
cat << EOF >&2
syntax extreme.sh FILENAME
Specify filename to parse
EOF... (3 Replies)
Hi Friends,
I wrote the below shell script to generate a report on alert messages recieved on a day. But i for processing around 4500 lines (alerts) the script is taking aorund 30 minutes to process.
Please help me to make it faster and improve the performace of the script. i would be very... (10 Replies)
Hi All,
I have written a script as follows which is taking lot of time in executing/searching only 3500 records taken as input from one file in log file of 12 GB Approximately.
Working of script is read the csv file as an input having 2 arguments which are transaction_id,mobile_number and search... (6 Replies)
I have around 300 files(*.rdf,*.fmb,*.pll,*.ctl,*.sh,*.sql,*.prog) which are of large size.
Around 8000 keywords(which will be in the file $keywordfile) needed to be searched inside those files.
If a keyword is found in a file..I have to insert the filename,extension,catagoery,keyword,occurrence... (8 Replies)
Hi ,
i wrote a script to convert dates to the formate i want .it works fine but the conversion is tkaing lot of time . Can some one help me tweek this script
#!/bin/bash
file=$1
ofile=$2
cp $file $ofile
mydates=$(grep -Po '+/+/+' $ofile) # gets 8/1/13
mydates=$(echo "$mydates" | sort |... (5 Replies)
Hello,
I'm new to this forum and like to first of all say hello to everyone.
I've got a really annoying problem at the moment.
I'm trying to rsync some files (about 200MB with one file of 120MB) from a Raspberry PI with raspbian to a debian server via rsync.
This procedure is stored in a... (3 Replies)
Hello,
Attached is my very simple C++ code to remove any substrings (DNA sequence) of each other, i.e. any redundant sequence is removed to get unique sequences. Similar to sort | uniq command except there is reverse-complementary for DNA sequence. The program runs well with small dataset, but... (11 Replies)
Discussion started by: yifangt
11 Replies
LEARN ABOUT DEBIAN
bb-csvinfo.cgi
BB-CSVINFO.CGI(1) General Commands Manual BB-CSVINFO.CGI(1)NAME
bb-csvinfo.cgi - CGI program to show host information from a CSV file
SYNOPSIS
bb-csvinfo.cgi
DESCRIPTION
bb-csvinfo.cgi is invoked as a CGI script via the bb-csvinfo.sh CGI wrapper. Based on the parameters it receives, it searches a comma-
separated file for the matching host, and presents the information found as a table.
bb-csvinfo.cgi is passed a QUERY_STRING environment variable with the following parameters:
key (string to search for, typically hostname)
column (columnnumber to search - default 0)
db (name of the CSV database file in $BBHOME/etc/, default hostinfo.csv)
delimiter (delimiter character for columns, default semi-colon)
CSV files are easily created from e.g. spreadsheets, by exporting them in CSV format. You should have one host per line, with the first
line containing the column headings. Despite their name, the default delimiter for CSV files is the semi-colon - if you need a different
delimiter, invoke bb-csvinfo.cgi with the "delimiter=<character>" in the query string.
Example usage
This example shows how you can use the bb-csvinfo CGI. It assumes you have a CSV-formatted file with information about the hosts stored as
$BBHOME/etc/hostinfo.csv, and the hostname is in the first column of the file.
Use with the bbgen --docurl
The --docurl option to bbgen(1) sets up all of the hostnames on your Xymon webpages to act as links to a CGI script. To invoke the
bb-csvinfo CGI script, run bbgen with the option
--docurl=/cgi-bin/bb-csvinfo.sh?db=hostinfo.csv&key=%s
SEE ALSO bb-hosts(5), hobbitserver.cfg(5), bbgen(1)Xymon Version 4.2.3: 4 Feb 2009 BB-CSVINFO.CGI(1)