Sponsored Content
Top Forums Shell Programming and Scripting How to check for a valid numeric input Post 302130263 by reborg on Saturday 4th of August 2007 08:34:29 AM
Old 08-04-2007
Take a look at the similar threads on the bottom of this page, at least one has an answer to this, from when it was asked before.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl code to differentiate numeric and non-numeric input

Hi All, Is there any code in Perl which can differentiate between numeric and non-numeric input? (11 Replies)
Discussion started by: Raynon
11 Replies

2. Shell Programming and Scripting

check input = "empty" and "numeric"

Hi how to check input is "empty" and "numeric" in ksh? e.g: ./myscript.ksh k output show: invalid number input ./myscript.ksh output show: no input ./myscript.ksh 10 output show: input is numeric (6 Replies)
Discussion started by: geoffry
6 Replies

3. Shell Programming and Scripting

Problems with valid input

Hello all I am having problems with a part of my script. Basically it asks for the user to enter a new id number for them. The catches are:- * It cannot already be existing (it will check a file) * It has to be four characters * It can only be numbers * It cannot call back into the... (2 Replies)
Discussion started by: ChrisHoogie
2 Replies

4. Shell Programming and Scripting

Valid input compared with input

Hi everyone, I cant seem to figure this out for the life of me. Basically, I have two arrays.. sub init { use Getopt::Long; use Data::Dumper; my @selections = (); my @valid_options = ( "vaild1", "valid2" ); GetOptions( "input=s" =>... (2 Replies)
Discussion started by: ckozler
2 Replies

5. Shell Programming and Scripting

how to check for valid password

I need to check if an account has a valid password. Would something like this work? read ACCNAME if grep -q "^$ACCNAME:\$6:" /etc/shadow; thenI noticed every entry in my shadow file that has a password starts with $6 ... it works for my current setup, but would it always work? I can't test... (4 Replies)
Discussion started by: ADay2Long
4 Replies

6. UNIX for Dummies Questions & Answers

How to check if file contains valid strings?

Hi All, I am a newbie...I would like to have a function which ll check if a file contains valid strings before "=" operator. Just to give you my requirement: assume my file has content: hello= gsdgsd sfdsg sgdsg sgdgdg world= gggg hhhh iiiii xxxx= pppp ppppp pppp my... (5 Replies)
Discussion started by: rtagarra
5 Replies

7. Shell Programming and Scripting

How to check the user input to be valid using shell script?

How to check the user input to be valid using shell script? The valid input is in the format like as follows. 1. It can only have r,w,x or a hyphen and nothing else. 2. ensure the r, w, x are in the correct order. for example: rwxr-xr-x is a valid format. Thanks (5 Replies)
Discussion started by: hyeewang
5 Replies

8. Shell Programming and Scripting

Check whether input is numeric

Hello there, find below for my code first: $pdp_asaba=`cat /tmp/temp_total | grep asaba | sed 's/*//g'` if ]] then pdp_asaba=0 fi $pdp_abuja=`cat /tmp/temp_total | grep abuja | sed 's/*//g'` if ]] then pdp_abuja=0 fi $pdp_ojota=`cat /tmp/temp_total | grep ojota | sed 's/*//g'` if ... (3 Replies)
Discussion started by: infinitydon
3 Replies

9. Shell Programming and Scripting

Check if time format is valid

How can I validate if time (HH:MM:SS) argument is valid? I got this from web but I can't modify it to exit the script if the time argument is invalid. echo $1 | awk -F ':' '{ print ($1 <= 23 && $2 <= 59 && $3 <= 59) ? "good" : "bad" }' ex: ./script.ksh 12:34:21 = okay ./script.ksh... (10 Replies)
Discussion started by: erin00
10 Replies

10. Shell Programming and Scripting

Check for valid hostnames

Hello, I am trying to develop a script to check for valid hostnames. Below are the prerequisites for a valid hostname which I got from wiki : Hostnames are composed of series of labels concatenated with dots, as are all domain names. For example, "en.wikipedia.org" is a hostname. Each label... (8 Replies)
Discussion started by: rahul2662
8 Replies
PTHREAD_KILL_OTHER_THREADS_NP(3)			     Linux Programmer's Manual				  PTHREAD_KILL_OTHER_THREADS_NP(3)

NAME
pthread_kill_other_threads_np - terminate all other threads in process SYNOPSIS
#include <pthread.h> void pthread_kill_other_threads_np(void); DESCRIPTION
pthread_kill_other_threads_np() only has an effect in the LinuxThreads threading implementation. On that implementation, calling this function causes the immediate termination of all threads in the application, except the calling thread. The cancellation state and cancel- lation type of the to-be-terminated threads are ignored, and the cleanup handlers are not called in those threads. CONFORMING TO
This function is a nonstandard GNU extension; hence the suffix "_np" (nonportable) in the name. NOTES
pthread_kill_other_threads_np() is intended to be called just before a thread calls execve(2) or a similar function. This function is designed to address a limitation in the obsolete LinuxThreads implementation whereby the other threads of an application are not automati- cally terminated (as POSIX.1-2001 requires) during execve(2). In the NPTL threading implementation, pthread_kill_other_threads_np() exists, but does nothing. (Nothing needs to be done, because the implementation does the right thing during an execve(2).) SEE ALSO
execve(2), pthread_setcancelstate(3), pthread_setcanceltype(3), pthread_cancel(3), pthreads(7) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2010-09-09 PTHREAD_KILL_OTHER_THREADS_NP(3)
All times are GMT -4. The time now is 11:00 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy