06-21-2005
script to change value in file
Hi,
I have a parameter file and it contains following items
$ cat TransactionParams
From_Date_Parm=2005-02-25
To_Date_Parm=2005-05-25
Extract_Root_Parm=/detld1/etl/ascential/Ascential/DataStage/Projects/CTI_London/IAM
Extract_Type_Parm=Transaction
EDW_Database_Parm=hdw_erks
EDW_User_Parm=t449206
FTP_Path_Parm=/detld1/etl/ascential/Ascential/DataStage/Projects/CTI_London/IAM/ftp/
FTP_User_Parm=t449207
FTP_Password_Parm=Magdog,123
Date_Run_Parm=06042005
Sequence_ID_Parm=1
Daily_Sequence_Parm=1
ParameterFileParm="nothing"
Send_FTP_Parm=Y
What i should do is i need to write a script which should search for systemtime (based on the time we run) and if it is less than 12'0 clock from From_Date_Parm should be replaced with sysdate - 1 (2005-06-20) and To_Date_Parm as sysdate (2005-06-21) else if it is greater than 12 and less than 24 then From_Date_Parm = sysdate (2005-06-21)
How can i change the appropriate values using script.
I am new to unix and i want the code which does the corresponding job.
Thanks in advance.
cheers,
gops
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LEARN ABOUT OPENSOLARIS
diff3
diff3(1) User Commands diff3(1)
NAME
diff3 - 3-way differential file comparison
SYNOPSIS
diff3 [-exEX3] filename1 filename2 filename3
DESCRIPTION
diff3 compares three versions of a file. It publishes disagreeing ranges of text flagged with the following codes:
==== all three files differ
====1 filename1is different
====2 filename2is different
====3 filename3is different
The type of change suffered in converting a given range of a given file to some other is indicated in one of the following ways:
f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3.
f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range can be abbreviated to n1.
The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of
the lower-numbered file is suppressed.
The following command applies the resulting script to filename1.
(cat script; echo a'1,$pa') | ed - filename1
OPTIONS
The following options are supported:
-e Produce a script for the ed(1) editor that incorporates into filename1 all changes between filename2 and filename3 (that is, the
changes that normally would be flagged ==== and ====3).
Text lines that consist of a single dot (. defeat the -e option.
-E Produce a script that incorporates all changes between filename2 and filename3, but treat overlapping changes (that is, changes that
would be flagged with ==== in the normal listing) differently. The overlapping lines from both files are inserted by the edit
script, bracketed by <<<<<< and >>>>>> lines.
-x Produce a script to incorporate only changes flagged ====.
-X Produce a script that incorporates only changes flagged ====, but treat these changes in the manner of the -E option.
-3 Produce a script to incorporate only changes flagged ====3.
USAGE
See largefile(5) for the description of the behavior of diff3 when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
FILES
/tmp/d3*
/usr/lib/diff3prog
EXIT STATUS
The following exit values are returned:
0 Successful completion.
1 An error occurred. A difference was found or there was a fatal error.
>1 A fatal error occurred.
Return values do not work the same as diff(1) or other vendor's versions of diff3.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesc |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
SEE ALSO
diff(1), attributes(5), largefile(5)
NOTES
Files longer than 64 Kbytes do not work.
SunOS 5.11 7 Nov 2005 diff3(1)