shell script variable

[sde]

i have a shell script where i send in a path, and then i need to append it.

mypath="/mydir/$1"
./mycommand $mypathadmin

./myshellscript /home/sde/

so basically i want the following command to run

./mycommand /home/sde/admin

but, .. my script doesn't work. how do i append a variable in a shell script? i've tried $mypath+"admin" , but that puts the + sign in there.

did that make sense?

[sde]

answer: ${mypath}admin

[redhead]

Mike, next time, provide your scripting language, since some of these things are shell dependant, so if your using bash it might be a different approach than when you're using zsh/sh/csh.

[sde]

ah yeah, .. it's easy to forget all the different shells. i use sh pretty much exclusively for this stuff.

[redhead]

In sh it should be as simple as: "$mypath"admin since it produces the same as ${mypath}admin

[Belisarius]

I switch between tcsh/csh (Solaris) and bash/sh (Linux), and both take the ${var} syntax.

As a rule, I always ${} my variables so my code is consistent. I strongly suggest you do the same, it saves headaches in the future (like this one). A little extra typing goes a long way in readability.

[teknomage1]

Good advice, Belisarius. Lately I've been dealing with the fun of tcsh on irix boxes. The bash feature I miss most is functions. They nicely bridge that gap between too complicated for aliases and too simple for scripts.

[redhead]

I allways code my scripts in pure sh, I know for some routines it requires a bit more scripting than say in bash, but no matter what *nix deriviant it is run on, you can be sure theres allways sh installed.

[Belisarius]

The problem for me is that at work, there are a great many existing scripts in csh, and most of the people that use them are used to that shell. So rather than radically deviate and start using a completely different shell, I just try to adopt clear coding styles.

[teknomage1]

Yeah, there's a surprizing amount of stuff around here from '87 when the studio was founded.