When you execute the script with shell command mode ( provide shell name), the shebang is ignored.
sh firstscript.sh , bash firstscript.sh , ksh firstscript.sh will execute the script in Bourne, Bash and Korn shell respectively. No matter what the shebang is.
As scottn and alister suggested. Just use printf instead.
printf "Hello,world\a\n"
printf is standardized, whereas Posix echo does not include the -e option.
Thank you very much.This help me a lot.
And one more thing that puzzle me is when typing the following commands in bash
echo --version
screen output --version
echo --help
screen output --help
echo -h
screen output -h
You seem to have a penchant for non-standard commands. First echo -e, now print!
# echo $0
-bash
# print test
-bash: print: command not found
Why not just use printf and be done with it? In addition to portability you add flexibility.
Thank you for your suggestion.
I learn a lot of things from the reply of you kind mates.
I think it is worth learning because now I have a clearer pirture about what the stuff is going on.
---------- Post updated at 03:53 AM ---------- Previous update was at 03:49 AM ----------
I'm sorry I didn't make the question clear,when I say print I mean the screen output.
Ah, I see you updated your post.
My mistake. Need to get some coffee on the go 