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# 1  
Old 05-09-2013
Question Simple question 3
Here I am again~~
I am studying the storing function and dot command. But I found I couldn't load a stored function from a file. This is my command-line and script:
Code:
$ ls -lsa
Total 5
0 drwxr-xr-x+ 1 Administrator None   0 May  9 14:44 .
0 drwxr-xr-x+ 1 Administrator None   0 May  9 10:38 ..
4 -rw-r--r--  1 Administrator None 865 May  9 14:10 .testfunction
1 -rw-r--r--  1 Administrator None  73  May  9 14:40 datafile
1 -rwxr--r--  1 Administrator None 482 May  9 11:07 test

codes in my test script
Code:
#!/bin/sh
# scriptname : test
# purpose : call the function, add()
datafile=./datafile
. .testfunction	# the dot command reads the testfunction file into memory
if [ ! -f $datafile ]
then
	echo "basename $datafile does not exist! " 1>&2
	exit 1
fi

However, when I run the test script, error came out:
Code:
$ ./test
./test: line 5: . .testfunction: file not found

What happened? Please give me some tips, thanks
# 2  
Old 05-09-2013
While sourcing, you have to specify it as:
Code:
. ./.testfunction

Or use absolute path instead for sourcing.
This User Gave Thanks to Yoda For This Post:
franksunnn
# 3  
Old 05-09-2013
Please use a header that describe what information you need.
Not Simple question 3
This User Gave Thanks to Jotne For This Post:
franksunnn
# 4  
Old 05-09-2013
Quote:
Originally Posted by Yoda
While sourcing, you have to specify it as:
Code:
. ./.testfunction

Or use absolute path instead for sourcing.
The path doesn't have to be absolute or contain a slash character if the directory containing the file is on your search path (as specified by $PATH).

So, if your .testfunction file had been placed in the directory $HOME/bin and $HOME/bin was included in your setting of $PATH, your command:
Code:
. .testfunction

would have worked.
# 5  
Old 05-09-2013
This may also be relevant:
Quote:
Some older implementations searched the current directory for the file, even if the value of PATH disallowed it. This behavior was omitted from this volume of POSIX.1-2008 due to concerns about introducing the susceptibility to trojan horses that the user might be trying to avoid by leaving dot out of PATH.
Shell Command Language, dot:rationale
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