Sponsored Content
Full Discussion: Bash script too slow
Top Forums Shell Programming and Scripting Bash script too slow Post 302390905 by tigta09 on Friday 29th of January 2010 10:54:37 AM
Old 01-29-2010
After running:

Code:
grep -F -H -f  WashFD.txt $( cat xfiles ) > SEID.searches

the SEID.searches file is growing very fast, however the entries do not match what is in the WashFD.txt.

Am I missing something?

Last edited by pludi; 01-29-2010 at 01:08 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

My script runs too slow :-(...

Hello experts, I have a series issue in script that result with bad peformence and I wonder if you can assist me. For example I have two files: File-New, size 15Mb. File-Old, size 1Mb. File-New content: a b c k File-Old content: d f a b (0 Replies)
Discussion started by: roybe
0 Replies

2. Shell Programming and Scripting

script to add numbers is slow

Hi, I am running a BASH shell with the following script. The script works and gives me correct output but is very slow with large files. The more rows and columns (width and height) the slower as you can probably see. How can I do what I want more efficiently? Any ideas welcome. It has been... (10 Replies)
Discussion started by: macsurveyr
10 Replies

3. Shell Programming and Scripting

Slow Perl script: how to speed up?

I had written a perl script to compare two files: new and master and get the output of the first file i.e. the first file: words that are not in the master file STRUCTURE OF THE TWO FILES The first file is a series of names ramesh sushil jonga sudesh lugdi whereas the second file (could be... (4 Replies)
Discussion started by: gimley
4 Replies

4. UNIX for Dummies Questions & Answers

Help with slow KSH script

My script builds a lot of these array lists, then compares their sizes which solves my problem, but runs very slow. :( set -A comboSorted -- $( for x in ${IDs} do nawk -v s=$x ' BEGIN { testPattern="^" s "$" } { if ( $2 ~ testPattern ) { getline;getline; if ($1 == "IMAGE_SIZE") print... (1 Reply)
Discussion started by: nerdcurious
1 Replies

5. Shell Programming and Scripting

Slow Script Execution.

Basically my requirement is to know the total number of free anonymous ports. anonymous port range is 32768- 65535. i wrote a script for that ********************************************** for i in {32768..65535} do netstat -an | grep $i > /dev/null if ... (21 Replies)
Discussion started by: mohtashims
21 Replies

6. Shell Programming and Scripting

Slow down output from dhclient-script to screen

Hi I know the basic about script and sleep processes. However this is more tricky: I would like to run sh -x /sbin/dhclient-script and slow down the output of the script as a whole. How would you do it? I would like to delay output on the screen with 1 second for every line for the output... (3 Replies)
Discussion started by: medium_linux
3 Replies

7. Shell Programming and Scripting

Shell script reading file slow

I have shell program as below #!/bin/sh echo ======= LogManageri start ========== #This directory is getting the raw data from remote server Raw_data=/opt/ftplogs # This directory is ready for process the data Processing_dir=/opt/processing_dir # This directory is prcoessed files and... (4 Replies)
Discussion started by: Chenchireddy
4 Replies

8. Shell Programming and Scripting

BASH Slow Under Cron Only!

I've got a BASH script that runs much faster from the command line than when invoked under CRON. Ideas? Priority? IO? (1 Reply)
Discussion started by: gmark99
1 Replies

9. Shell Programming and Scripting

Bin/bash - xmessage very slow

Hello, I am showing the start of my script. I am finding that 'xmessage' is taking about 12-15 seconds to show. This in a terminal is very quick '/opt/vc/bin/vcgencmd get_camera'. Is there any way to get 'camera not detected' to show faster. Regards #!/bin/bash s=$(/opt/vc/bin/vcgencmd... (4 Replies)
Discussion started by: mad-hatter
4 Replies

10. Shell Programming and Scripting

How to block first bash script until second bash script script launches web server/site?

I'm new to utilities like socat and netcat and I'm not clear if they will do what I need. I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes. I'm using Cygwin bash on Windows 10. My... (3 Replies)
Discussion started by: siegfried
3 Replies
trcs(1) 							   User Manuals 							   trcs(1)

NAME
trcs - convert text files from one codeset to other SYNOPSIS
trcs -C | -l | -h trcs [-s] [-f input-codeset ] [-t output-codeset ] [ file ]... DESCRIPTION
trcs is a program for translation of text files from one codeset to other. When exact translation is impossible it tries to make approxi- mations. For example pseudographic characters are approximated by ASCII characters in codesets that have no pseudographic characters and characters with diacritical marks are approximated by existing characters. If the option -s or --gen-script is given trcs will generate simple script that invokes tr(1) This is useful if you want to include this in your script or for faster conversion of many files. If none of -C, -s, -l, -h and their equivalents is given each file will be read assuming it is coded with codeset input-codeset On standard output it will be recoded so to use codeset output-codeset If there is no file given trcs will act as filter. Both input-codeset and out- put-codeset are case insensitive and default to `cp1251'. OPTIONS
-C, --copyright Display copying conditions and warranty information. -s, --gen-script Generates conversion script for given input and output encodings instead to convert text files. -l, --list List all known codesets with their aliases. -h, --help Display this help and exit. -f input-codeset, --from[=]input-codeset Codeset of the source. -f output-codeset, --to[=]output-codeset Codeset of the output. EXAMPLES
trcs -fcyrillic -t koi8-r letter.txt Convert letter.txt from ISO-8859-5 (cyrillic) to KOI8-R and output the result on standard output. trcs --from cp437 --to=mik --gen-script >ibm2mik Generates script ibm2mik for converting from CP437 to MIK. sh ibm2mik screen.txt Convert screen.txt from CP437 to MIK. Output the result on standard output. Without parameters ibm2mik acts as filter. AUTHOR
Anton Zinoviev <anton@lml.bas.bg>, <zinoviev@fmi.uni-sofia.bg> SEE ALSO
tr(1) Linux JUN 2000 trcs(1)
All times are GMT -4. The time now is 07:22 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy