Sponsored Content
Full Discussion: Speed up bash loop?
Top Forums Shell Programming and Scripting Speed up bash loop? Post 302960677 by ripat on Wednesday 18th of November 2015 12:26:57 PM
Old 11-18-2015
Quote:
Originally Posted by cmccabe
Yes it is the first character in $5 to the "-" sign ( so in AGRN-6|gc=75) it is AGRN.
In that case the example that I gave above should put you on track. Split the AGRN or whatever part of $5 that could possibly been *exactly* matched by the search pattern. This will avoid searching a pattern in a longer string which is rather greedy.
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

dmidecode, RAM speed = "Current Speed: Unknown"

Hello, I have a Supermicro server with a P4SCI mother board running Debian Sarge 3.1. This is the "dmidecode" output related to RAM info: RAM speed information is incomplete.. "Current Speed: Unknown", is there anyway/soft to get the speed of installed RAM modules? thanks!! Regards :)... (0 Replies)
Discussion started by: Santi
0 Replies

2. Shell Programming and Scripting

bash and ksh: variable lost in loop in bash?

Hi, I use AIX (ksh) and Linux (bash) servers. I'm trying to do scripts to will run in both ksh and bash, and most of the time it works. But this time I don't get it in bash (I'm more familar in ksh). The goal of my script if to read a "config file" (like "ini" file), and make various report.... (2 Replies)
Discussion started by: estienne
2 Replies

3. Shell Programming and Scripting

any way to speed up calculations in bash script

hi i have a script that is taking the difference of multiple columns in a file from a value from a single row..so far i have a loop to do that.. all the data is floating point..fin has the difference between array1 and array2..array1 has 700 x 300= 210000 values and array2 has 700 values.. ... (11 Replies)
Discussion started by: npatwardhan
11 Replies

4. Shell Programming and Scripting

Using variables created sequentially in a loop while still inside of the loop [bash]

I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends. As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Discussion started by: DeCoTwc
2 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

BASH loop inside a loop question

Hi all Sorry for the basic question, but i am writing a shell script to get around a slightly flaky binary that ships with one of our servers. This particular utility randomly generates the correct information and could work first time or may work on the 12th or 100th attempt etc !.... (4 Replies)
Discussion started by: rethink
4 Replies

7. Shell Programming and Scripting

If loop in bash

Hello, I have a script that runs a series of commands. Halfway through the script, I want it to check whether everything is going alright: if it is, to proceed with the script, if it isn't to repeat the last step until it gets it right. My code so far looks like this, simplified a bit: ... (3 Replies)
Discussion started by: Leo_Boon
3 Replies

8. Shell Programming and Scripting

Speed up the loop in shell script

Hi I have written a shell script which will test 300 to 500 IPs to find which are pinging and which are not pinging. the script which give output as 10.x.x.x is pining 10.x.x.x. is not pining - - - 10.x.x.x is pining like above. But, this script is taking... (6 Replies)
Discussion started by: kumar85shiv
6 Replies

9. Shell Programming and Scripting

Help on for loop in bash

Hi, In the code "for loop" has been used to search for files (command line arguments) in directories and then produce the result to the standard output. However, I want when no files are named on the command line, it should read a list of files from standard input and it should use the command... (7 Replies)
Discussion started by: Ra26k
7 Replies

10. Shell Programming and Scripting

Speed up extraction od tar.bz2 files using bash

The below bash will untar each tar.bz2 folder in the directory, then remove the tar.bz2. Each of the tar.bz2 folders ranges from 40-75GB and currently takes ~2 hours to extract. Is there a way to speed up the extraction process? I am using a xeon processor with 12 cores. Thank you :). ... (7 Replies)
Discussion started by: cmccabe
7 Replies
Tcl_StringMatch(3)					      Tcl Library Procedures						Tcl_StringMatch(3)

__________________________________________________________________________________________________________________________________________________

NAME
Tcl_StringMatch, Tcl_StringCaseMatch - test whether a string matches a pattern SYNOPSIS
#include <tcl.h> int Tcl_StringMatch(str, pattern) int Tcl_StringCaseMatch(str, pattern, flags) ARGUMENTS
const char *str (in) String to test. const char *pattern (in) Pattern to match against string. May contain special characters from the set *?[]. int flags (in) OR-ed combination of match flags, currently only TCL_MATCH_NOCASE. 0 specifies a case-sensitive search. _________________________________________________________________ DESCRIPTION
This utility procedure determines whether a string matches a given pattern. If it does, then Tcl_StringMatch returns 1. Otherwise Tcl_StringMatch returns 0. The algorithm used for matching is the same algorithm used in the string match Tcl command and is similar to the algorithm used by the C-shell for file name matching; see the Tcl manual entry for details. In Tcl_StringCaseMatch, the algorithm is the same, but you have the option to make the matching case-insensitive. If you choose this (by passing TCL_MATCH_NOCASE), then the string and pattern are essentially matched in the lower case. KEYWORDS
match, pattern, string Tcl 8.5 Tcl_StringMatch(3)
All times are GMT -4. The time now is 08:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy