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Top Forums Shell Programming and Scripting How to check record delimiter of a file ? Post 302979582 by bakunin on Tuesday 16th of August 2016 11:43:10 AM
Old 08-16-2016
Quote:
Originally Posted by manab86
My requirment is for every record of a particular file I've to check for a record delimeter (e.g. "\n") and if any row doesn't have "\n" then report it in error file .
Basically your file has a structure like this:

Code:
<record><delimiter><record><delimiter>.....

If some delimiter would be missing it would be:

Code:
<record><record><delimiter>.....

that is, two records without a delimiter between them. You can create a program to check for that BUT ONLY if you have a very rigid definition for what a "record" constitutes and provided that you can implement that definition in code.

In general you need to be able to find out where one record ends and the next begins. But with such a mechanism in place you do not need any delimiter (as a separate character) at all because the records are already "delimited" by their beginning/ending markers, whatever these may be.

I hope this helps.

bakunin
 

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audit(2)																  audit(2)

NAME
audit - write a record to the audit log SYNOPSIS
cc [ flag ... ] file ... -lbsm -lsocket -lnsl [ library... ] #include <sys/param.h> #include <bsm/libbsm.h> int audit(caddr_t record, int length); The audit() function is used to write a record to the system audit log. The data pointed to by record is written to the log after a mini- mal consistency check, with the length parameter specifying the size of the record in bytes. The data should be a well-formed audit record as described by audit.log(4). The kernel validates the record header token type and length, and sets the time stamp value before writing the record to the audit log. The kernel does not do any preselection for user-level generated events. If the audit policy is set to include sequence or trailer tokens, the kernel will append them to the record. Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error. The audit() function will fail if: EFAULT The record argument points outside the process's allocated address space. EINVAL The record header token ID is invalid or the length is either less than the header token size or greater than MAXAUDIT- DATA. EPERM The {PRIV_PROC_AUDIT} privilege is not asserted in the effective set of the calling process. USAGE
Only privileged processes can successfully execute this call. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ bsmconv(1M), auditd(1M), auditon(2), auditsvc(2), getaudit(2), audit.log(4), attributes(5), privileges(5) The functionality described in this man page is available only if the Basic Security Module (BSM) has been enabled. See bsmconv(1M) for more information. 31 Mar 2005 audit(2)
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