Performance issue in shell script

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1. Shell Programming and Scripting

Performance Issue - Shell Script

Hi, I am beginner in shell scripting. I have written a script to parse file(s) having large number of lines each having multiple comma separated strings. But it seems like script is very slow. It took more than 30mins to parse a file with size 120MB (523564 lines), below is the script code ...

2. Shell Programming and Scripting

Performance problem in Shell Script

Hi, I am Shell script beginner. I wrote a shell programming that will take each line of a file1 and search for it in another file2 and give me the output of the lines that do not exist in the file2. I wrote it using do while nested loop but the problem here is its running for ever . Is there...

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Hi All, can any one help me on this please. Replace sting in FILE1.txt with FILE2.txt. FILE1.txt record must have at least one state is repeated once.But need to replace only from second occurrence in record in FILE1.txt Condition: order of searching the records in FILE2.txt is impartent....

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awk script performance issue

Hello All, I have the below excerpt of code in my shell script and it taking long time to complete, though it prints the output quickly. Is there a way to make it come out once it finds the first instance as the file size of 4.7 GB it could be going through all lines of the data file to find for...

5. Shell Programming and Scripting

Script performance issue

hi i have written a shell script which comapare a text file data with files within number of different directories. example. Text File: i have a file /u02/abc.txt which have almost 20000 file names Directories: i have a path /u03 which have some subdirectories like a,b,c which have almost...

6. Shell Programming and Scripting

Improve the performance of a shell script

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...

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FTP-Shell Script-Performance issue

Hello All, Request any one of Unix/Linux masters to clarify on the below. How far it is feasible to open a new ftp connection for transferring each file when there are multiple files to be sent. I have developed shell script to send all files at single stretch but some how it doesnt suit to...

8. Shell Programming and Scripting

Performance issue with ftp script.

Hi All, I have written a script to FTP files from local server to remote server. When i try it for few number of files the scripts runs successfully. But the same script when i run for 200-300 files it gives me performanace issue by aborting the connection. Please help me out to improve the...

9. Shell Programming and Scripting

Performance issue with awk script.

Hi, The below awk script is taking about 1 hour to fetch just 11 records(columns). There are about 48000 records. The script file name is take_first_uniq.sh #!/bin/ksh if then while read line do first=`echo $line | awk -F"|" '{print $1$2$3}'` while read line2 do...

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Performance of a shell script

Hiii, I wrote a shell script for testing purpose. I have to test around 200thousand entries with the script.When i am doing only for 6000 entries its taking almost 1hour.If i test the whole testingdata it will take huge amount of time. I just want to know is it something dependent on the...

Shell Programming and Scripting