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Top Forums UNIX for Beginners Questions & Answers String has * as the field delimiter and I need echo/awk to escape it, how? Post 302989020 by newbie_01 on Friday 6th of January 2017 10:38:42 AM
Old 01-06-2017
String has * as the field delimiter and I need echo/awk to escape it, how?

Hi,

I am trying to read an Oracle listener log file line by line and need to separate the lines into several fields. The field delimiter for the line happens to be an asterisk.

I have the script below to start with but when running it, the echo command is globbing it to include other information that I don't need.

Below is a sample run of the script z.ksh

Code:
$
$ ls -altr
total 16
drwxr-xr-x 3 oracle oinstall 4096 Jan  7 03:59 ..
-rw-r--r-- 1 oracle oinstall  243 Jan  7 04:03 x.out
-rwxr--r-- 1 oracle oinstall  586 Jan  7 04:12 z.ksh
drwxr-xr-x 2 oracle oinstall 4096 Jan  7 04:12 .
$ ./z.ksh
- Processing  --> 15-DEC-2016 10:19:24 * (CONNECT_DATA=(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=testuser))(SERVER=DEDICATED)(SERVICE_NAME=test_app.x.y.z)) * (ADDRESS=(PROTOCOL=tcp)(HOST=60.11.22.123)(PORT=55440)) * establish * test_app.x.y.z * 12666
- timestamp = 15-DEC-2016 10:19:24 x.out z.ksh (CONNECT_DATA=(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=testuser))(SERVER=DEDICATED)(SERVICE_NAME=test_app.x.y.z)) x.out z.ksh (ADDRESS=(PROTOCOL=tcp)(HOST=60.11.22.123)(PORT=55440)) x.out z.ksh establish x.out z.ksh test_app.x.y.z x.out z.ksh 12666
- connectstring =
- result =
- service =
- returncode =

$ cat z.ksh
#!/bin/ksh

LOG=x.out

while read line
do
   echo "- Processing  --> $line"
   timestamp=`echo $line | awk -F"[*]" '{ print $1 }'`
   connectstring=`echo $line | awk -F"[*]" '{ print $2 }'`
   result=`echo $line | awk -F"[*]" '{ print $3 }'`
   service=`echo $line | awk -F"[*]" '{ print $4 }'`
   returncode=`echo $line | awk -F"[*]" '{ print $5 }'`

   echo "- timestamp = $timestamp"
   echo "- connectstring = $connectstring"
   echo "- result = $result"
   echo "- service = $service"
   echo "- returncode = $returncode"

   echo
done < $LOG

###########
# THE END #
###########

I've also tried doing awk -F "\*" and that does not make any difference besides giving the warning awk: warning: escape sequence `\*' treated as plain `*'

I also need to somehow extract the line below to each respective fields, i.e. CONNECT_DATA, PROGRAM, USER, SERVER, SERVICE_NAME,HOST and PORT Smilie.

Code:
(CONNECT_DATA=(CID=(PROGRAM=JDBC Thin Client)(HOST=__jdbc__)(USER=testuser))(SERVER=DEDICATED)(SERVICE_NAME=test_app.x.y.z)) * (ADDRESS=(PROTOCOL=tcp)(HOST=60.11.22.123)(PORT=55440))

Here's wishing Oracle could have provided something to parse their own log. Maybe there is a program/script/utility out there that can parse log files of any format?

I will have to somehow change the timestamp to YYYYMMDD. For the time being, I need to be able to get around the asterisk globbing to start with.

Can't install Splunk/logstash unfortunately.

Any advice much appreciated. Thanks in advance.
 

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print(1)							   User Commands							  print(1)

NAME
print - shell built-in function to output characters to the screen or window SYNOPSIS
ksh print [-Rnprsu [n]] [arg]... ksh93 print [-Renprs] [-f format] [-u fd] [string...] DESCRIPTION
ksh The shell output mechanism. When no options are specified, or when an option followed by ' a - is specified, or when just - is specified, the arguments are printed on standard output as described by echo(1). ksh93 By default, print writes each string operand to standard output and appends a NEWLINE character. Unless, the -r, -R, or -f option is speciifed, each character in each string operand is processed specially as follows: a Alert character.  Backspace character. c Terminate output without appending NEWLINE. The remaining string operands are ignored. E Escape character (ASCII octal 033). f FORM FEED character. NEWLINE character. Tab character. v Vertical tab character. \ Backslash character. x The 8-bit character whose ASCII code is the 1-, 2-, or 3-digit octal number x. OPTIONS
ksh The following options are supported by ksh: -n Suppresses new-line from being added to the output. -r-R Raw mode. Ignore the escape conventions of echo. The -R option prints all subsequent arguments and options other than -n. -p Cause the arguments to be written onto the pipe of the process spawned with |& instead of standard output. -s Cause the arguments to be written onto the history file instead of standard output. -u [ n ] Specify a one digit file descriptor unit number n on which the output is placed. The default is 1. ksh93 The following options are supported by ksh93: -e Unless -f is specified, process sequences in each string operand as described above. This is the default behavior. If both -e and -r are specified, the last one specified is the one that is used. -f format Write the string arguments using the format string format and do not append a NEWLINE. See printf(1) for details on how to specify format. When the -f option is specified and there are more string operands than format specifiers, the format string is reprocessed from the beginning. If there are fewer string operands than format specifiers, then outputting ends at the first unneeded for- mat specifier. -n Do not append a NEWLINE character to the output. -p Write to the current co-process instead of standard output. -r Do not process sequences in each string operand as described above. -R If both -e and -r are specified, the last one specified is the one that is used. -s Write the output as an entry in the shell history file instead of standard output. -u fd Write to file descriptor number fd instead of standard output. The default value is 1. EXIT STATUS
The following exit values are returned: 0 Successful completion. >0 Output file is not open for writing. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
echo(1), ksh(1), ksh93(1), printf(1), attributes(5) SunOS 5.11 27 Mar 2008 print(1)
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