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# 1  
Old 04-20-2010
alias
Hi,

I have created alias in UNIX environment (ie in .cshrc file). But when i use the alias in the UNIX script, getting an error message as that is not found. But when i use that alias, outside the script it is working fine.

Let me know if you need more details

For example:
alias cderror 'cd /dun/incompleted/error' in .cshrc file
i am using cderror in my scripts i am getting an error as not found.

--Naveen
# 2  
Old 04-20-2010
When your script runs it opens a new shell where aliases are not available

Run your script as
Code:
. script_name

# 3  
Old 04-20-2010
Hi.

Aliases are not part of your shell's environment in the same way as, say, variables, and as such can't be "exported" like variables.

To use aliases as defined in your .cshrc file you can "source" that file in your script, or put the aliases into a separate file and source that, or explicitly declare the aliases in your script.

i.e.

Code:
$ alias ll
ll='ls -al'

$ cat myScript
ll

$ ./myScript
./myScript: line 1: ll: not found


$ cat myAliases
alias ll='ls -al'

$ cat myScript
. ./myAliases
ll

$ ./myScript
drwxr-xr-x  27 scott  staff    918 20 Apr 23:07 .
drwxr-xr-x  35 scott  staff   1190 20 Apr 07:34 ..
-rwxr-xr-x   1 scott  staff     17 20 Apr 23:07 myScript
-rw-r--r--   1 scott  staff     18 20 Apr 23:06 myAliases

# 4  
Old 04-20-2010
You can also export aliases in KSH and use them in a subshell by adding the -x flag, as long as your script does not call again the interpreter (the hashbang).

Code:
alias -x ll="ls -l"

# 5  
Old 04-20-2010
Quote:
Originally Posted by verdepollo
You can also export aliases in KSH and use them in a subshell by adding the -x flag, as long as your script does not call again the interpreter (the hashbang).

Code:
alias -x ll="ls -l"

Whether that works or not is dependent also on the implementation of fork and exec.

For example on Solaris:
Code:
$ alias -x lsal='ls -al'

$ cat myLS
lsal

$ ./myLS
total 106
drwxr-xr-x  40 root     root        1024 Apr 14 20:08 ..
-rw-r--r--   1 root     root          30 Apr 21 00:08 ogl_select306
-r--r--r--   1 root     root          11 Apr 21 00:08 .X0-lock
drwxrwxrwt   2 root     root         176 Apr 21 00:08 .X11-unix
drwxrwxr-x   2 root     root         176 Apr 21 00:08 .X11-pipe
drwxr-xr-x   2 noaccess noaccess     177 Apr 21 00:08 hsperfdata_noaccess
-rw-r--r--   1 root     root         296 Apr 21 00:10 breg_business_logic_20100421121008806.log
drwxrwxr-x   2 root     root         177 Apr 21 00:10 .ICE-unix
drwxrwxrwt   3 root     root         182 Apr 21 00:10 OraTemp
-rw-r--r--   1 root     root         262 Apr 21 00:10 rootswup.trc
drwxr-xr-x   2 root     root         178 Apr 21 00:10 hsperfdata_root
drwxrwxrwx   2 root     root         184 Apr 21 00:10 .removable
drwxrwxrwt   9 root     sys          956 Apr 21 00:11 .
-rwx------   1 root     root           7 Apr 21 00:14 myLS

BSD:
Code:
$ alias -x lsal='ls -al' 

$ ./myLS
./myLS: line 1: lsal: not found

# 6  
Old 04-21-2010
how do i source the .cshrc file in my script
# 7  
Old 04-21-2010
Hi.

You don't have to. It's loaded if you have

Code:
#!/bin/csh

in the first line of your script.

Can you please show - using CODE TAGS - exactly the alias as defined in your .cshrc file, and the output of
Code:
ls -ld /dun/incompleted/error




Here's what I get:
Code:
% cat .cshrc
echo Hello from .cshrc
alias cdtmp 'cd /tmp'


% cat cshTest
#!/bin/csh
cdtmp
pwd


% ./cshTest
Hello from .cshrc
/tmp

 
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