I do not have GNU date. So I got frustrated with limited options to get elapsed time in Unix,, I wrote a method in Java and using it..
If this works I could replace java method with this..
Code:
diffTime=`expr ${endTime} - ${startTime}`
Does this approach work if a main program is calling say 1. common functions included from other ksh programs and 2. included java programs(from jar/class) ? I know PID is same thrughout the execution of my program.
In other words can we use this to reliably find elapsed time to execute complex Admin scripts in Unix ?
say my environment variable is this
Quote:
SECONDS=1111
: once I execute abc.sh Does it start incrementing SECONDS as soon as any PID starts in the runtime and ends incrimenting before that PID exits from shell !?
Last edited by kchinnam; 09-03-2010 at 12:03 AM..
Reason: more doubts..
Is there anyway to get the start time and end time / status of a crontab job which was just completed? Of course, we know the start time of the crontab job since we are scheduling. But I would like to know process start and time recorded somewhere or can be fetched from a command like 'ps'. ... (3 Replies)
Hi,
Please help me in calculating the time difference between below mentioned timestamps.
a=07/17/2007 02:20:00 AM MST
b=07/17/2007 02:07:46 AM MST
Thanks (2 Replies)
Hi All,
I've written a script which reads all the systems backup information and saves it in a log file.
ssh -l ora${sid} ${primaryhost} "tail -2 /oracle/$ORACLE_SID/sapbackup/back$ORACLE_SID.log" |head -1 | awk '{print echo "PREVIOUS:-- Start Date&Time: " $3,$4,echo "|| End Date&Time:... (1 Reply)
Hi All,
I've written a script which reads all the systems backup information and saves it in a log file.
ssh -l ora${sid} ${primaryhost} "tail -1 /oracle/$ORACLE_SID/sapbackup/back$ORACLE_SID.log" | awk '{print $3,$4,$5,$6}' >> ${RESULTFILE}
The output comes as below:
2008-09-30 06.00.01... (2 Replies)
Hi,
Can anyone help me how can I get the line that between the start time and end time.
file1.txt
15/03/2009 20:45:03 Request: - Data of this line
15/03/2009 20:45:12 Response: - Data of this line
15/03/2009 22:10:40 Request: - Data of this line
15/03/2009 22:10:42 Response: - Data of... (1 Reply)
Process start time is not showing the correct time:
I had started a process on Jun 17th at 23:30:00.
Next day morning when I run the command "ps -ef | grep mq", the process is showing the start date of Jun 17th but the start time is 00:16:41
Day/Date is setup correctly on the server.
It... (2 Replies)
Hello,
I'm trying to create a shell script (#!/bin/sh) which should tell me the age of a file in minutes...
I have a process, which delivers me all 15 minutes a new file and I want to have a monitoring script, which sends me an email, if the present file is older than 20 minutes.
To do... (10 Replies)
I have time in a file in HH:MM:SS format as it contents(its not the file creation time). i need this to be converted to epoch time or time since 1970. The time is written into that file by a script, which i cannot modify. Im using AIX machine
$ cat abc.txt
10:29:34 (2 Replies)
i grepped the time stamp in a file as given below
now i need to calculate time difference
file data:
18:29:10
22:15:50 (5 Replies)
Discussion started by: vivekn
5 Replies
LEARN ABOUT CENTOS
java-wrappers
JAVA-WRAPPERS(7) Java wrappers JAVA-WRAPPERS(7)NAME
java-wrappers - capacities shared by java wrapper scripts
DESCRIPTION
Most Java programs are not run directly, but through small shell scripts that take care of various things, such as finding a suitable java
environment and looking for libraries.
To ease the task of the maintainers, they rely on a library providing runtime detection, library detection and other features. This manual
page describes the common features of all those scripts, and to which point you can configure them. This is mainly done via environment
variables.
ENVIRONMENT VARIABLES
java-wrappers understands some environment variables:
JAVA_CMD
The java command that will be run. If this variable is set, it disables all lookup for a java runtime.
JAVA_BINDIR
Specifies a directory that will be looked for a java or a jdb executable (depending on the setting of JAVA_DEBUGGER). It has prece-
dence over JAVA_HOME but not over JAVA_CMD.
JAVA_HOME
A path to a java runtime. If this variable is set, all lookup for a java runtime is disabled, except that if no java executable is
found in the path, the command java is used.
JAVA_FLAVOR
A probably more easy-to-use version of the JAVA_HOME variable: instead of specifying the full path of the java runtime, you name it.
List of available flavors can be found in the file /usr/lib/java-wrappers/jvm-list.sh. See examples below.
JAVA_DEBUGGER
If this is set, the wrapper will try to pick up a java debugger rather than a java interpreter. This will fail if the jbd of the
runtime found is a stub.
JAVA_CLASSPATH
Additional classpath, will have priority over the one found by the wrapper.
JAVA_ARGS
Additional arguments to the java command. They will come before all other arguments.
FORCE_CLASSPATH
If this variable is set, it will be the only classpath. You'd better know what you are doing.
DEBUG_WRAPPER
This is probably the most important variable; if it set, the wrapper will print out useful information as it goes by its business,
such as which runtime it did find, and which command is run eventually.
JAVA_JARPATH
The path where the wrappers will go looking for jar archives. If not set, the wrapper will look into the default directory,
/usr/share/java. Warning : the wrapper will not look anywhere else than in JAVA_JARPATH. Setting it incorrectly will most probably
result in early crashes.
EXAMPLES
The examples all rely on rasterizer(1), from the package libbatik-java, but they really apply to all scripts that use java-wrappers.
Print out debugging information:
DEBUG_WRAPPER=1 rasterizer
Limit rasterizer's memory to 80 MB:
JAVA_ARGS=-Xmx80m rasterizer
Force rasterizer to run with kaffe(1):
JAVA_HOME=/usr/lib/kaffe rasterizer
The same, but using JAVA_BINDIR:
JAVA_BINDIR=/usr/lib/kaffe/bin rasterizer
Force rasterizer to run with openjdk:
JAVA_FLAVOR=openjdk rasterizer
Debug rasterizer with Sun's debugger, while printing debugging information from the wrapper:
DEBUG_WRAPPER=1 JAVA_CMD=/usr/lib/jvm/java-6-sun/bin/jdb rasterizer
BUGS
Care has been taken to make the wrappers bug-free. If that was not the case, please file a bug report against the java-wrappers package.
If you wish to submit any problem with a java executable relying on java-wrappers, please also submit the output of the command run with
DEBUG_WRAPPER=1. It will save one mail exchange and therefore potentially reduce the time it takes to fix the bug.
DEVELOPERS
There is currently no documentation about writing a wrapper script save the comments in /usr/lib/java-wrappers/java-wrappers.sh. If you
have to write one, we suggest you base yourself upon, for instance, the rasterizer wrapper script, or any other one (just pick up any
direct reverse dependency of java-wrappers and look for scripts).
SEE ALSO java(1), jdb(1)
/usr/lib/java-wrappers/java-wrappers.sh
AUTHOR
java-wrappers and its documentation were written by Vincent Fourmond <fourmond@debian.org>
Version 0.1.16 2010-05-04 JAVA-WRAPPERS(7)