Skip to main content

Stop a process after certain time in Linux

i was wondering if there is any way we can run a process upto certain time , i.e i want to run cat file_name timelimit  is 1 seconds try this for big file

so to do that i found two ways let's see

i] Using program come from GNU coreutils "timeout"

             timeout [OPTION] DURATION COMMAND [ARG].

for easy understanding try below example
            timeout 1s cat file_name
 1s => run for second for minute 'm' for hour 'h'
cat => COMMAND
file_name => argument for the command 'cat'

and donot forget to check the Manual Page "man timeout" hit the terminal.

ii] Using a shell script program

 program_name &
sleep 20s
killall program_name

Line 1: The first line tells you run the program in background if you want in foreground remove the &
Line 2: delay for 20seconds for minute 'm' for hour 'h' and checkout man page.
Line 3: Its judgement time , kill the respective process.

the above shell script is simple implementation for close program after certain timeout.

If you want to know more check out the stackoverflow discussion on this topic
  http://stackoverflow.com/questions/2387485/limiting-the-time-a-program-runs-in-linux


Labels:

Comments

Post a Comment

Popular posts from this blog

Ecosia

ECOSIA - A Green search engine “ Ecosia donates 80% profits to planting trees” Site: www.ecosia.org Lauched on 7 th December 2009 and created by Christian Kroll available in more than 26 language. It is located in Berlin, Germany.It is also called as CO2-neutral company.Ecosia has donated to different tree-planting programs. Until December 2010 Ecosia’s donations went to a program by WWF Germany that protected the Juruena-National park in the Amazonas. In order to make sure the protection was kept up, the program also drew up and financed plans with timber companies and the  local communities. According to B-labs, as of January 2015, "In donating 80 percent of its ad revenue, the search engine has raised over $1.5 million for rainforest protection since its founding in December 2009." According to Ecosia, by 2015, the search engine had almost 2.5 million active users, and searches through it had resulted in more than 2 million trees being planted.Since October 201...
Post a Comment
Read more

C program jackpot

/*Program to show sum of 10 elements of array & show the average.*/ #include<stdio.h> int main () { int a[ 10 ],i,sum = 0 ; float av; printf( "enter elements of an aaray: " ); for (i = 0 ;i < 10 ;i ++ ) scanf( "%d" , & a[i]); for (i = 0 ;i < 10 ;i ++ ) sum = sum + a[i]; printf( "sum=%d" ,sum); av = sum / 10 ; printf( "average=%.2f" ,av); return 0 ; } Output: enter elements of an array : 4 4 4 4 4 4 4 4 4 4 sum = 40 average = 4.00 /*Program to find the maximum no. in an array.*/ #include<stdio.h> void main () { int a[ 5 ],max,i; printf( "enter element for the array: " ); for (i = 0 ;i < 5 ;i ++ ) scanf( "%d" , & a[i]); max = a[ 0 ]; for (i = 1 ;i < 5 ;i ++ ) { if (max < a[i]) max = a[i]; } printf( "maximum no= %d" ,max); } Output: enter elements for array : 5 4 7 1 2 maximum no = 7 /*Swapp...
Post a Comment
Read more

C program for bracket matching

# include < stdio.h > int main ( ) { char a [ 24 ] , stack [ 24 ] ; int n , i , top = 0 , cnt = 0 ; scanf ( " %s " , a ) ; n = strlen ( a ) ; if ( n % 2 = = 0 ) { for ( i = 0 ; i < n ; i + + ) { switch ( a [ i ] ) { case '(' : case '{' : case '[' : case '<' : stack [ top + + ] = a [ i ] ; break ; case ')' : if ( stack [ - - top ] = = '(' ) { cnt + + ; } break ; case '}' : if ( stack [ - - top ] = = '{' ) cnt + + ; break ; case ']' : if ( stack [ - - top ] = = '[' ) cnt + + ; break ; case '>' : if ( stack [ - - top ] = = '<' ) cnt + + ; break ; default : break ; } } //printf("%s %d %d",stack,cnt,n); if ( n / 2 = = cnt ) printf ( " valid " ) ; else printf ( " invalid " ) ; } else printf ( " invalid " ) ; return 200 ; } if u have ...
Post a Comment
Read more