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SunOS man pages : ncab2clf (1)

User Commands                                         ncab2clf(1)


ncab2clf - convert binary log file to Common Log File format


/usr/bin/ncab2clf [ -Dhv ] [ -i input-file ] [ -o output- file ] [ -b size ] [ -n number ] [ -s datetime ]


The ncab2clf command is used to convert the log file gen- erated by the Solaris Network Cache and Accelerator ("NCA") from binary format, to Common Log File ("CLF") format. If no input-file is specified, ncab2clf uses stdin. If no output- file is specified, the output goes to stdout.


-b Specifies the binary-log-file blocking in kilo- bytes; the default is 64 Kbyte. -D Specifies that direct I/O be disabled. -h Prints usage message. -i input-file Specifies the input file. -n number Output number CLF records. -o output-file Specifies the output file. -s datetime Skip any records before the date and time speci- fied in datetime. You can specify the date and time in CLF format or in the format specified by the touch(1) utility. CLF format is the dominant format, so ncab2clf first analyzes datetime assuming CLF. -v Provides verbose output.


Example 1: Converting a Binary File to a Common Log File Format The following example converts the binary file /var/nca/logs/nca.blf to a file /var/nca/logs/nca.clf, which is in Common Log File format. example% ncab2clf -D -i /var/nca/logs/nca.blf -o /var/nca/logs/nca.clf SunOS 5.8 Last change: 28 Sep 2001 1 User Commands ncab2clf(1) Example 2: Converting Multiple Log Files The following script may be used to convert multiple log files. The directory designated by "*" must only contain log files. !/bin/ksh for filename in * do ncab2clf -D < $filename > $filename.clf done Example 3: Using -s and -n on a Raw Device The following example shows how ncab2clf can be used on a raw device. If not using the -n option, the default is to convert all records from the starting location to the end of the file. The date and time specified with -s, below, is in CLF format. example% ncab2clf -s '10/Apr/2001:09:23:13' -n 100 < /dev/dsk/c2t1d0s6


The following exit values are returned: 0 The file converted successfully >0 An error occurred.


See attributes(5) for descriptions of the following attri- butes: ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |_____________________________|_____________________________| | Availability | SUNWncau | |_____________________________|_____________________________| | Interface Stability | Evolving | |_____________________________|_____________________________|


nca(1), ncakmod(1), nca.if(4), ncakmod.conf(4), ncalogd.conf(4), attributes(5) System Administration Guide, Volume 3


The binary log files generated by NCA can become very large. When converting these large binary files, use the -b option SunOS 5.8 Last change: 28 Sep 2001 2 User Commands ncab2clf(1) to the ncab2clf command to help performance. Direct I/O is a benefit to the user if the data being writ- ten does not come in as large chunks. However, if the user wishes to convert the log file in large chunks using the -b option, then direct I/O should be disabled by using the -D option. SunOS 5.8 Last change: 28 Sep 2001 3