Help with Global Variable


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help with Global Variable
# 1  
Old 08-11-2009
Error Help with Global Variable

Hi Guyz,

I have a requirement like, i have to run a script every hour to count the number of errors encountered.
At the end of the day, i need to send them the total number of errors, that have ocurred the entire day.

For eg. if 10 errors occurred for starting 1 hr, 5 for next 1 hr, so on.
Summarized mail needs to be send at the end of the day with the total errors occured (here 15).

How can i preserve this value of errors occured each hour, so as to get hold of total erorrs at EOD?
I want to have a Global variable that preserves this value each hour & finally prints this value when needed.

Thnx in advance.
Smilie
# 2  
Old 08-11-2009
You can store the value in a file, for example :
Code:
ErrorFile=./error_count
if [ -e $ErrorFile ]
then
   last_error_count=$(<$ErrorFile)
else
   last_error_count=0
fi
. . . .
error_count=10
. . . .
(( new_error_count=last_error_count+error_count ))
If EndOfDay 
then
   echo Total error count for the day : $new_error_count
   echo 0 > $ErrorFile
else
   echo $new_error_count > $ErrorFile
fi

Jean-Pierre.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Global Variable

Hi, I have created a variable say today at the begin having 123 as its value and inside a for loop it gets resolved to some value say 150 in its first iteration. How can I use this value 150 ( 1st iteration's ) outside the scope of for loop ?. In the same way I wanted to use all iteration's... (1 Reply)
Discussion started by: penqueen
1 Replies

2. Shell Programming and Scripting

Global variable value

Hi All, Im new to shell scripting. I am running EgA.sh and setting one global variable XYZ=0 . Also calling another EgB.sh from EgA.sh, changing the value of XYZ=10 but after executing EgB.sh, value of XYZ is still 0. Im expecting it to be 10. Anyone for help. Thanks in Advance. :) (5 Replies)
Discussion started by: paliwal
5 Replies

3. Programming

Structure as global variable

I need to use the below global structure defined in code1.c in another code2.c struct memIOptrs { const char *name; unsigned char *virtptr; }MEM_IO_PTRS; I have a header file for the project codes.h, how should the structure be declared here. Also, what if the structure was... (1 Reply)
Discussion started by: dragonpoint
1 Replies

4. Shell Programming and Scripting

global variable not holding its value?

dear there, this kept me awake last night, the variable ${TO} in the following script doesn't seem to hold its value. I have a file ./filelist, which lists all files of interests. I group them by keywords in the filename, and would like to count total number of lines in each group. ... (7 Replies)
Discussion started by: patiobarbecue
7 Replies

5. Shell Programming and Scripting

Global variable

I have written a shell scritp in which i am using a variable which is declared before a while loop and i am updaitng the variable in while loop and want to use its updated value outside the loop. I am not able to do so, b'coz the scope of the variable is limited to the while loop only and when i am... (5 Replies)
Discussion started by: deepanshu
5 Replies

6. Shell Programming and Scripting

global variable not being set

In ksh I thought a global variable was any variable in a script or function that did not have the typeset command. I have a global in my calling script which I increment in a function, but the value does not change in the calling script. Here is the code: function f_open_log { typeset -r... (5 Replies)
Discussion started by: robotball
5 Replies

7. Shell Programming and Scripting

global variable in awk

I wrote a awk script file and define some global variables after BEGIN option: BEGIN { cell = ""; alarm = "";} when i run the command: awk -f awk_script inputfile The results are as expected. But when I put awk script into a shell script. Global variables couldn't be understand. I don't... (1 Reply)
Discussion started by: anhtt
1 Replies

8. Shell Programming and Scripting

Global Variable in a script?

How to create a Global variable within a script file. say i want a varaible called LOGFILE to be used within all the script. how to do that? (2 Replies)
Discussion started by: skyineyes
2 Replies

9. Shell Programming and Scripting

Global Variable in awk...

i think..... it's possible use a variable out a awk in the awk ??? ex. A=20071225 awk '{ print "the value is" $a }' OR awk '{ print "........"; c=10; print $c ; c=$A ; print $A}' for a external variable is possbile use in the awk ??? (1 Reply)
Discussion started by: ZINGARO
1 Replies

10. Shell Programming and Scripting

Global variable becomes local

I have encountered a very weird behavior of a global variable in Korn Shell in AIX: A function f1 in my script pipes the output of the function f2 to a program. A variable defined as global using typeset gets its value in f2. That value is not seen in f1. If I remove the pipe ksh recognizes the... (2 Replies)
Discussion started by: odashe318
2 Replies
Login or Register to Ask a Question