10-16-2008
Hi Gurus
I am trying the same type of command through a shell script but it is not working.
$ cat testing.cfg
owner||1
object||1
command_type||1
CREATED_DATE||2
CREATED_BY||2
LAST_UPDATED_DATE||2
LAST_UPDATED_BY||2
$ cat extractedmessage.out
object: RXP_PATIENT
is tag null: Y
command_type: UPDATE
old(2): CREATED_DATE
20-JAN-99
old(3): CREATED_BY
RXP_DM_P001
old(4): LAST_UPDATED_DATE
06-APR-08
old(5): LAST_UPDATED_BY
RXP_DM_P012
p=$\p
cat testing.cfg|while read extractdata
do
whattext=`echo $extractdata|awk -F"||" {'print $1'}`
howmanylines=`echo $extractdata|awk -F"||" {'print $2'}`
echo "sed -n '/${whattext}/,$p' extractedmessage.out|head -${howmanylines}|tail -1"
`sed -n '/${whattext}/,$p' extractedmessage.out|head -${howmanylines}|tail -1` >isitworking.out 2>&1
outputis1=`date`
echo ${outputis1}
done
done
The above script is not working if i put it in a script
cat testing.ksh
p=$\p
cat testing.cfg|while read extractdata
do
whattext=`echo $extractdata|awk -F"||" {'print $1'}`
howmanylines=`echo $extractdata|awk -F"||" {'print $2'}`
echo "sed -n '/${whattext}/,$p' extractedmessage.out|head -${howmanylines}|tail -1"
output1is=`sed -n '/${whattext}/,$p' extractedmessage.out|head -${howmanylines}|tail -1`
echo ${output1is}
done
$ ksh -x testing.ksh
+ p=$p
+ cat testing.cfg
+ read extractdata
+ + echo LAST_UPDATED_DATE||2
+ awk -F|| {print $1}
whattext=LAST_UPDATED_DATE
+ + echo LAST_UPDATED_DATE||2
+ awk -F|| {print $2}
howmanylines=2
+ echo sed -n '/LAST_UPDATED_DATE/,$p' extractedmessage.out|head -2|tail -1
sed -n '/LAST_UPDATED_DATE/,$p' extractedmessage.out|head -2|tail -1
+ + sed -n /${whattext}/,$p extractedmessage.out
+ head -2
+ tail -1
output1is=
+ echo
but if i cut and paste outout of the sed and run it manuall it works fine
$ sed -n '/LAST_UPDATED_DATE/,$p' extractedmessage.out|head -2|tail -1
06-APR-08
Any help will be greatly appreciated.
Thanks in advance
arun
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head(1) General Commands Manual head(1)
NAME
head - Displays the beginning of files
SYNOPSIS
Current Syntax
head [-c bytes] [-n lines] [file...]
Obsolescent Syntax
head [-lines] [file...]
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
head: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
The default count is 10. [Tru64 UNIX] Specifies the number of bytes to display. If the last byte written is not a newline character, a
newline character is appended to the output. Specifies the number of lines to display Works exactly as -n lines. Obsolescent.
OPERANDS
Path name of the input file. If you do not specify a file, head reads standard input.
DESCRIPTION
The head command copies the standard input to standard output, ending output of each file at the specified point.
NOTES
The obsolescent form is subject to withdrawal at any time.
EXIT STATUS
The following exit values are returned: Successful completion. An error occurred.
EXAMPLES
To display the first 5 lines of a file called test, enter: head -n 5 test To display the first ten lines of all files (except those with a
name beginning with a period), enter: head *
ENVIRONMENT VARIABLES
The following environment variables affect the execution of head: Provides a default value for the internationalization variables that are
unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari-
ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value,
overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes
of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files). Determines the
locale for the format and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the
processing of LC_MESSAGES.
SEE ALSO
Commands: cat(1), more(1), pg(1), sed(1), tail(1)
Standards: standards(5)
head(1)