I'm trying to write a shell script which basically goes into a particular folder and performs some actions. The catch here is that the folder name is variable i.e. /path/to/variable
I was thinking, is it possible to run a shell script from command line and also define a variable in the same line? Something like:
./run.sh $id=456
When it runs, it takes the path as
/path/to/$id and hence /path/to/456.
You can run the script in the following style:
./run.sh 465
Than you can access the content of the parameter inside the script with $1 (1st parameter), $2 (2nd parameter) and so on.
To change the directory use cd /path/to/$1
BTW: $# returns the count of parameters.
Another way is to use arguments, like here: http://www.linux.com/archive/feature/118031
So you can run your script like this: ./run.sh -d 465 (where -d stand for directory)
Other way around.
id=456 ./run.sh
id with the value 456 to the script run.sh (and only to that script and any programs it runs; not to anything run after it).