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Top Forums Shell Programming and Scripting AIX UNIX (kshell) to Linux Shell Script Migration. Post 302906170 by Chubler_XL on Tuesday 17th of June 2014 05:30:04 PM
Old 06-17-2014
It's been a long time since I did a big project to convert AIX scripts to RHEL. I do remember having some trouble with echo statements not expanding the backslash characters (like \n) for example:

Code:
echo "\nStop Service now: [y]  \c"

I believe this was related to /bin/sh just being a symbolic link to bash but running in "strict compatibility" mode. However, we found that turning on shopt -s xpg_echo at the top of the script was usually enough to get the echo statements working as they used to and much less time consuming than converting everything to use printf.

Also watch out for anything that directly interacts with the /dev device files. as almost certainly they will be named differently that the AIX devices. Think here about accessing DVD/CD device or backup tape drives or changers.

Our backup scripts needed to be re-written as they used commands like sysback and tape to interact with tape libraries/changers and things were just too different under AIX, we decided rather than redevelop this it was easier to implement a commercial backup solution (I think it was CommVault), this came with an agent that managed most of the I/O and we only need to develop little stub scripts that were called to do things like stop the database or do an on-line backup to a file.
 

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BACKUP_APROPOS(8)					       AFS Command Reference						 BACKUP_APROPOS(8)

NAME
backup_apropos - Displays each help entry containing a keyword string SYNOPSIS
backup apropos -topic <help string> [-help] backup ap -t <help string> [-h] DESCRIPTION
The backup apropos command displays the first line of the online help entry for any backup command that has in its name or short description the string specified by the -topic argument. To display the syntax for a command, use the backup help command. OPTIONS
-topic <help string> Specifies the keyword string to match, in lowercase letters only. If the string is more than a single word, surround it with double quotes (" ") or other delimiters. -help Prints the online help for this command. All other valid options are ignored. OUTPUT
The first line of a command's online help entry names it and briefly describes its function. This command displays the first line for any backup command where the string specified with the -topic argument is part of the command name or first line. EXAMPLES
The following example lists all backup commands that include the word "tape" in their names or short descriptions: % backup apropos tape labeltape: label a tape readlabel: read the label on tape scantape: dump information recovery from tape status: get tape coordinator status PRIVILEGE REQUIRED
None SEE ALSO
backup(8), backup_help(8) COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved. This documentation is covered by the IBM Public License Version 1.0. It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell. OpenAFS 2012-03-26 BACKUP_APROPOS(8)
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