Sponsored Content
Top Forums Shell Programming and Scripting Slow Perl script: how to speed up? Post 302506321 by pravin27 on Sunday 20th of March 2011 01:41:05 AM
Old 03-20-2011
How about awk?
Code:
awk -F'=' 'NR==FNR{a[$1]++;next} !a[$1]' file2 file1

 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

network speed is slow

Hello, everyone: i encounter a problem these days , pls help me ,thanks in advance. my env: machine: ES40 A ES40 B os: true64 Unix 4.0f note: src.tar 8M network card speed 100M my problem: ... (3 Replies)
Discussion started by: q30
3 Replies

2. Shell Programming and Scripting

Optimize/speed-up perl extraction

Hi, Is there a way I can extract my data faster. You know my data is 1.2 GB text file with 8Million rows with 38 columns/fields. Imagine how huge this is. How I can optimized the data extraction using perl. That is why I'm creating a script to filter only those informations that I need. Is... (3 Replies)
Discussion started by: pinpe
3 Replies

3. UNIX for Advanced & Expert Users

speed test +20,000 file existance checks too slow

Need to make a very fast file existence checker. Passing in 20-50K num of files In the code below ${file} is a file with a listing of +20,000 files. test_speed is the script. I am commenting out the results of <time test_speed try>. The normal "test -f" is much much too slow when a system... (2 Replies)
Discussion started by: nullwhat
2 Replies

4. Shell Programming and Scripting

Speed up this script!

I have a script that processes a fair amount of data -- say, 25-50 megs per run. I'd like ideas on speeding it up. The code is actually just a preprocessor -- I'm using another language to do the heavy lifting. But as it happens, the preprocessing takes much more time than the final processing... (3 Replies)
Discussion started by: CRGreathouse
3 Replies

5. Filesystems, Disks and Memory

data from blktrace: read speed V.S. write speed

I analysed disk performance with blktrace and get some data: read: 8,3 4 2141 2.882115217 3342 Q R 195732187 + 32 8,3 4 2142 2.882116411 3342 G R 195732187 + 32 8,3 4 2144 2.882117647 3342 I R 195732187 + 32 8,3 4 2145 ... (1 Reply)
Discussion started by: W.C.C
1 Replies

6. Shell Programming and Scripting

Net::SSH::Perl slow to login.

I have some sample code that's supposed to ssh to another machine using Net::SSH::Perl, execute a command, and print the output of that command. It's very basic, and it works. However, I noticed that upon logging in: $ssh->login('username','password'); It takes roughly 10-13 seconds to... (2 Replies)
Discussion started by: mrwatkin
2 Replies

7. Shell Programming and Scripting

How can i speed this script up?

Hi, Im quite new to scripting and would like a bit of assistance with trying to speed up the following script. At the moment it is quite slow.... Any way to improve it? total=111120 while do total=`expr $total + 1` INCREMENT=$total firstline = "blablabla" secondline = "blablabla"... (5 Replies)
Discussion started by: brunlea
5 Replies

8. Shell Programming and Scripting

Help me with speed up this script

hey guys i have a perl script wich use to compare hashes but it tookes a long time to do that so i wich i will have the soulition to do it soo fast he is the code <redacted> (1 Reply)
Discussion started by: benga
1 Replies

9. Solaris

Rsync quite slow (using very little cpu): how to improve its speed?

I have "inherited" a OmniOS (illumos based) server. I noticed rsync is significantly slower in respect to my reference, FreeBSD 12-CURRENT, running on exactly same hardware. Using same hardware, same command with same source and target disks, OmniOS r151026 gives: test@omniosce:~# time... (11 Replies)
Discussion started by: priyadarshan
11 Replies
set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
All times are GMT -4. The time now is 05:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy