01-13-2009
Capture Shell Script Output To A File
Hi,
I am running a shell script called dbProcess.sh which performs shutdown and startup of various Oracle instances we have.At the time of execution the script produces the following output to the command line window
$./dbProcess.sh stop
#### Run Details ######
Hostname : server-hop-1
RunDate : 01-13-09
RunTime : 09:43:14
#### ########### ######
##############################################################################
/u01/app/oracle/product/9.2
/u01/app/oracle
it9
##############################################################################
##############################################################################
# Setting Environment Variables For SID : # it9
##############################################################################
##############################################################################
# Contents Of Connection Out File #
##############################################################################
##############################################################################
# Killing Active DB Connections #
##############################################################################
Connected.
Database closed.
Database dismounted.
ORACLE instance shut down.
##############################################################################
I would like to create an output file being at the time of executing the dbProcess.sh and the process must write all the output lines of the dbProcess.sh to this file.
I would like to clarify that i am not looking for any kind of redirection commands using the > or >> symbol.
What i am looking out for is a series of commands that i will be able to add to my dbProcess.sh shell script which will start a log file write all the shell output to the logfile and at the end of it save and exit the log file. I dont mind if the output is not showing up on the stdout for me most important aspect is the creation of this logfile and to write all output to this logfile.
I tried the to add lines to dbProcess.sh using the unix script command.But it did not work because when the shell script executed the script command line it stopped and waited for me to type exit for it to continue.
Please let me know if you have any clarification.
Thanks and kind Regards,
Rajan.S
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LEARN ABOUT MOJAVE
jrunscript
jrunscript(1) General Commands Manual jrunscript(1)
NAME
jrunscript - command line script shell
SYNOPSIS
jrunscript [ options ] [ arguments... ]
PARAMETERS
options
Options, if used, should follow immediately after the command name.
arguments
Arguments, if used, should follow immediately after options or command name.
DESCRIPTION
jrunscript is a command line script shell. jrunscript supports both an interactive (read-eval-print) mode and a batch (-f option) mode of
script execution. This is a scripting language independent shell. By default, JavaScript is the language used, but the -l option can be
used to specify a different language. Through Java to scripting language communication, jrunscript supports "exploratory programming"
style.
NOTE: This tool is experimental and may not be available in future versions of the JDK.
OPTIONS
-classpath path
Specify where to find the user's .class files that are accessed by the script.
-cp path
This is a synonym for -classpath path
-Dname=value
Set a Java system property.
-Jflag
Pass flag directly to the Java virtual machine on which jrunscript is run.
-l language
Use the specified scripting language. By default, JavaScript is used. Note that to use other scripting languages, you also need to spec-
ify the corresponding script engine's jar file using -cp or -classpath option.
-e script
Evaluate the given script. This option can be used to run "one liner" scripts specified completely on the command line.
-encoding encoding
Specify the character encoding used while reading script files.
-f script-file
Evaluate the given script file (batch mode).
-f -
Read and evaluate a script from standard input (interactive mode).
-help
Output help message and exit.
-?
Output help message and exit.
-q
List all script engines available and exit.
ARGUMENTS
If [arguments...] are present and if no -e or -f option is used, then the first argument is the script file and the rest of the arguments,
if any, are passed as script arguments. If [arguments..] and -e or -f option are used, then all [arguments..] are passed as script argu-
ments. If [arguments..], -e and -f are missing, interactive mode is used. Script arguments are available to a script in an engine variable
named "arguments" of type String array.
EXAMPLES
Executing inline scripts
jrunscript -e "print('hello world')"
jrunscript -e "cat('http://java.sun.com')"
Use specified language and evaluate given script file
jrunscript -l js -f test.js
Interactive mode
jrunscript
js>print('hello world');
hello world
js>34 + 55
89
js> thread(function() { print('hello world'); }
hello world
js>
Run script file with script arguments
jrunscript test.js arg1 arg2 arg3
test.js is script file to execute and arg1, arg2 and arg3 are passed to script as script arguments. Script can access these using "argu-
ments" array.
SEE ALSO
If JavaScript is used, then before evaluating any user defined script, jrunscript initializes certain built-in functions and objects. These
JavaScript built-ins are documented in jsdocs.
06 Aug 2006 jrunscript(1)