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Alias is not working under Bourne Shell

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Operating Systems Solaris Alias is not working under Bourne Shell
# 1  
Old 11-02-2015
Alias is not working under Bourne Shell
Hi,

Please assist me why HC alias is not working under this shell?

Code:
root@singapore # grep HC /.profile
alias HC='cd /var/tmp/HC/2015/`date +%B`'
root@singapore # . /.profile
Sourcing //.profile-EIS.....
root@singapore # echo $HC

root@singapore # HC
HC: not found
root@singapore # echo $SHELL
/sbin/sh
root@singapore # uname -a
SunOS singpapore 5.10 Generic_147440-19 sun4v sparc SUNW,SPARC-Enterprise-T5120

But, it works when I read the users profile:


Code:
root@singapore # bash
root@singapore # HC
bash: HC: command not found
root@singapore # . .profile
Sourcing //.profile-EIS.....
root@singapore # HC
root@singapore # pwd
/var/tmp/HC/2015/November
root@singapore #

Last edited by Don Cragun; 11-02-2015 at 05:48 AM.. Reason: Add CODE tags.
# 2  
Old 11-02-2015
Have you tried to execute in command line first to see?
Code:
alias HC='cd /var/tmp/HC/2015/`date +%B`'
 HC

What do you get?
This User Gave Thanks to vbe For This Post:
tprabhu1983
# 3  
Old 11-02-2015
The first you seem to run unser sh, the second under bash. What be the results of alias HC in either?
# 4  
Old 11-02-2015
Solaris /bin/sh does not have aliases.
Either have a function in .profile
Code:
HC() {
  cd /var/tmp/HC/2015/`date +%B`'
}

Or have the alias (or the function) in .bashrc, that is run when you start a bash.
# 5  
Old 11-02-2015
Quote:
Originally Posted by vbe
Have you tried to execute in command line first to see?
Code:
alias HC='cd /var/tmp/HC/2015/`date +%B`'
 HC

What do you get?
Code:
root@singapore # HC='cd /var/tmp/HC/2015/`date +%B`'
root@singapore # echo $HC
cd /var/tmp/HC/2015/`date +%B`
root@singapore # alias  HC='cd /var/tmp/HC/2015/`date +%B`'
root@singapore # echo $HC
cd /var/tmp/HC/2015/`date +%B`
root@singapore # echo $SHELL
/sbin/sh

---------- Post updated at 09:49 AM ---------- Previous update was at 09:48 AM ----------

Code:
root@singapore # HC='cd /var/tmp/HC/2015/`date +%B`'
root@singapore # echo $HC
cd /var/tmp/HC/2015/`date +%B`
root@singapore # alias  HC='cd /var/tmp/HC/2015/`date +%B`'
root@singapore # echo $HC
cd /var/tmp/HC/2015/`date +%B`
root@singapore # echo $SHELL
/sbin/sh

# 6  
Old 11-03-2015
Read MadeInGermany answer, aliases are simply not supported by the legacy Bourne shell which predates functions. There is no point trying to define and execute an alias under /sbin/sh or /bin/sh when running Solaris 10 and older.

In any case, to see what an alias contains, echo is the wrong command, as RudyC already posted, you simply use the alias builtin too (when supported by the shell).

Finally, "echo $SHELL", is also an incorrect way to identify what shell you are running, This command will tell you the user's default shell, i.e. the one defined in the passwd database.
This User Gave Thanks to jlliagre For This Post:
tprabhu1983
# 7  
Old 11-03-2015
Well, echo $SHELL will print the active shell.
I get different results whether i type that inside a zsh bash or sh script, but in the terminal, usualy you are right, it prints the default shell, since most ppl dont change the terminal its shell.

If it is bash or sh, did you try:
Code:
shopt expand_aliases

hth
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