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Full Discussion: Alias not working
Top Forums Shell Programming and Scripting Alias not working Post 302989999 by kshji on Friday 20th of January 2017 12:13:50 PM
Old 01-20-2017
Alias works also in in noninteractive scripts.

Make own rc-file if not like add this to default rc-file:

$HOME/.xxrc file:
Code:
alias nawk='echo No nawk'
for awk in /usr/bin/gawk /usr/local/bin/gawk /usr/bin/nawk /usr/bin/awk
do
        [ -x "$awk" ] && alias nawk="$awk" && break
done
# test echo - you will see this test msg everytime when you start shell
echo "Myawk:$awk" >&2

Example add line to the $HOME/.bashrc:
Code:
[ -f $HOME/.xxrc ] && . $HOME/.xxrc

If you are ksh user then add same line to the $HOME/.kshrc or setup ENV
Code:
ENV=$HOME/.xxrc
export ENV

After those rc setup, always when you execute bash or ksh, shell will source .xxrc.
I'm sure that bash has also same method as ksh has ENV variable method to setup rc-file, but I didn't check it.

Code:
ls -al | nawk '{print $1}'

 

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LEARN ABOUT POSIX

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)
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