10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I want to write one program in C in Unix OS which will check the running status of a process time to time. If the process is stopped somehow by any means, it will ensure that the process is restarted and only one copy of the process image should run in memory at any point of time for the user.... (2 Replies)
Discussion started by: sanzee007
2 Replies
2. UNIX for Dummies Questions & Answers
Hello,
May i please know how do i check if the given input argument is one of the listed numbers then success else failure. I am using bash shell.
if
then
echo "success"
else
echo "failure"
fi
Thank you. (2 Replies)
Discussion started by: Ariean
2 Replies
3. UNIX for Dummies Questions & Answers
Is there a directive to limit the number of virtual hosts allowed per apache instance? I am told yes but I cannot find it. (1 Reply)
Discussion started by: mojoman
1 Replies
4. Shell Programming and Scripting
Hi,
I have a file with data as given
$cat file1.txt
123
234
23e
234.456
234.876e
345.00
I am checking if the values are proper integers using the command.
nawk -F'|' 'int($1)!=$1 {printf "Error in field 1|"$0"\n"}' file1.txt
This is checking for only integers ( without... (10 Replies)
Discussion started by: ashwin3086
10 Replies
5. Shell Programming and Scripting
Hi,
I have one file like 00123. And this file name is generated as a sequence.
So how can I confirm the generated file name is a number, not a special character or alphabets.
Can anybody help me out.
Thanks in advance. (3 Replies)
Discussion started by: Kattoor
3 Replies
6. Shell Programming and Scripting
hi,
I would like to calculate number of character for a number,
for exemple : 1200 --> there are 4 characters , 120001 -> 5 characters (4 Replies)
Discussion started by: francis_tom
4 Replies
7. Shell Programming and Scripting
Hi ,
I am facing a problem .. which looks simple... but took 2 days of mine.. even now it is not solved completely..
I have one variable..., want to know whether that variable contains number... canbe +ve or -ve ...
Values
+35 --- number
-43 --- number
45A -- non number... (12 Replies)
Discussion started by: shihabvk
12 Replies
8. Shell Programming and Scripting
Alright, I think I know what I am doing with sed(which probably means I don't). But I cant figure out how to replace just the first occurance of a string. I have tried sed, ed, and grep but can't seem to figure it out. If you have any suggestions I am open to anything! (3 Replies)
Discussion started by: IronHorse7
3 Replies
9. Shell Programming and Scripting
Hi,
I am writing a shell script to invoke a C++ program. Before I start the C++ program (oi7loadbalancer), I am checking if the process is already running. I start the process only if it is not already running. I have the following check in my script.
proccount=`ps -f -u $USER_NAME | grep... (8 Replies)
Discussion started by: sim
8 Replies
10. UNIX for Dummies Questions & Answers
If I have a variable $X, how do I check it is a number?
Many thanks. (2 Replies)
Discussion started by: handak9
2 Replies