06-12-2008
Quote:
Originally Posted by
deviprasad83
Hi,
I am using a command "ps -ef | grep identify" which results more than 1 results. Actually I need to get the time from each of them , compare with the current date and conditionally stop a process.
The problem I am facing is to iterate through the results getting from the command. Please Help me regarding this script.
Plz let me know if my problem is not clear....
Thanks
Devi
If you are looking for things today it won't be as easy as ps helpfully, Not, doesn't add the Month and Date to the output for processes started today .
If for earleir than today than ps -ef | grep identify | grep '
date eg Jun 11' would give you those processes. If you want to deal with them one at a time and kill them then personally I'd write them to a file, ps -ef | grep identify | grep ' Jun 11' | awk 'print $2' > pid_list.txt then using a for loop or a while loop process each and issue a kill command.
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RETURN(P) POSIX Programmer's Manual RETURN(P)
NAME
return - return from a function
SYNOPSIS
return [n]
DESCRIPTION
The return utility shall cause the shell to stop executing the current function or dot script. If the shell is not currently executing a
function or dot script, the results are unspecified.
OPTIONS
None.
OPERANDS
See the DESCRIPTION.
STDIN
Not used.
INPUT FILES
None.
ENVIRONMENT VARIABLES
None.
ASYNCHRONOUS EVENTS
Default.
STDOUT
Not used.
STDERR
The standard error shall be used only for diagnostic messages.
OUTPUT FILES
None.
EXTENDED DESCRIPTION
None.
EXIT STATUS
The value of the special parameter '?' shall be set to n, an unsigned decimal integer, or to the exit status of the last command executed
if n is not specified. If the value of n is greater than 255, the results are undefined. When return is executed in a trap action, the
last command is considered to be the command that executed immediately preceding the trap action.
CONSEQUENCES OF ERRORS
Default.
The following sections are informative.
APPLICATION USAGE
None.
EXAMPLES
None.
RATIONALE
The behavior of return when not in a function or dot script differs between the System V shell and the KornShell. In the System V shell
this is an error, whereas in the KornShell, the effect is the same as exit.
The results of returning a number greater than 255 are undefined because of differing practices in the various historical implementations.
Some shells AND out all but the low-order 8 bits; others allow larger values, but not of unlimited size.
See the discussion of appropriate exit status values under exit .
FUTURE DIRECTIONS
None.
SEE ALSO
Special Built-In Utilities
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .
IEEE
/The Open Group 2003 RETURN(P)