How do i create temporary files in a specific location in bash script?

[pangolinsos]

Man page for bash.
Man page for mktemp.

In the script set TMPDIR variable or on the command line.

export TMPDIR=/tmp/trainer

To simulate a temporary file creation. we use mktemp

 $ mktemp
/tmp/trainer/tmp.yHANCale9O

You can see the file was created in /tmp/trainer

The same applies if creating a directory, it gets created in the TMPDIR location.

$ mktemp -d 
/tmp/trainer/tmp.IJYM9fjFYC