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Full Discussion: Should I run scripts like sh /absolute_path/to/scriptname.sh or just /absolute_path/to/scriptname.sh
Top Forums Shell Programming and Scripting Should I run scripts like sh /absolute_path/to/scriptname.sh or just /absolute_path/to/scriptname.sh Post 302994881 by John K on Wednesday 29th of March 2017 06:57:35 AM
Old 03-29-2017
Should I run scripts like sh /absolute_path/to/scriptname.sh or just /absolute_path/to/scriptname.sh
Shell : Linux Bash
OS version : RHEL 6.X, Oracle Linux 6.X

Question1. To execute shell scripts, sometimes I see Linux admins placing sh command before shell scripts like below

Code:
sh /home/appadmin/sync_pending_orders.sh

But, I execute shell scripts like below ie. Just the absolute path

Code:
/home/appadmin/sync_pending_orders.sh

Which is recommended ?

Question2. Similarly, in crontab entries , I see sh being placed before shell script names like below. Is this sh 'prefixing' really needed ?

Code:
[appadmin@ktsappwprg01 ~]$ crontab -l
35 2 * * * /bin/sh /home/appadmin/sync_orders.sh >> /home/appadmin/log/ind_critical.log

25 3 * * * /bin/sh /home/appadmin/sync_pending_orders.sh >> /home/appadmin/log/ind_crtical_2.log

 

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LEARN ABOUT OSF1

db_printlog

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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