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Top Forums UNIX for Dummies Questions & Answers perl pack and unpack commands Post 302257677 by preyan_s on Wednesday 12th of November 2008 11:11:02 PM
Old 11-13-2008
Try this :)

perl -e "$var=help"; -e "print unpack 'H*',$var"
68656c70

I think in your previous case the instance of the variable is lost if u r invoking the statements individually.(correct me if am wrong)
 

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db_printlog(8)						      System Manager's Manual						    db_printlog(8)

NAME
db_printlog - Displays database log file (Enhanced Security) SYNOPSIS
/usr/tcb/bin/db_printlog [-h home] FLAGS
Specify a home directory for the database. The correct directory for enhanced security is /var/tcb/files. DESCRIPTION
A customized version of the Berkeley Database (Berkeley DB) is embedded in the operating system to provide high-performance database sup- port for critical security files. The DB includes full transactional support and database recovery, using write-ahead logging and check- pointing to record changes. The db_printlog utility provides a way to view the log file associated with the security database. RETURN VALUES
The db_printlog utility exits 0 on success, and >0 if an error occurs. ENVIRONMENT VARIABLES
If the -h option is not specified and the environment variable DB_HOME is set, it is used as the path of the database home. The home directory for security is /var/tcb/files. FILES
/var/tcb/files/auth.db /var/tcb/files/dblogs/* RELATED INFORMATION
Commands: db_checkpoint(8), db_recover(8), db_stat(8) delim off db_printlog(8)
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