Using bash I need to print some txt file which actually is another python script consisted of some tittles moved into the variable (t) within the main script
t="test"
printf "import pymol
cmd.load("${t}.pdb")" > ./script.py
the problem that the resulting script.py looks exactly like what I've defined in my main script
import pymol
cmd.load("${t}.pdb")"
so how I can to past correctly value of 't' within the resulted script.py?
import pymol
cmd.load("test.pdb")"
You need to use a placeholder in the format string:
printf 'import pymol\ncmd.load("%s.pdb")' "$t"
%s specifies that a string value will be inserted. It is not considered good practice to use variables within the format string; they should be passed as additional arguments to printf.
I have also fixed your quotes and used a newline \n rather than defining the string over two lines. It is always good practice to double quote your variable expansions, e.g. "$t".
An alternative in this case would be to use a heredoc, which you may prefer:
t='test'
cat <<EOF >script.py
import pymol
cmd.load("${t}.pdb")
EOF
t="test"
printf "import pymol
cmd.load('$t.pdb')" > script.py
You can do like you do when you a value echo $smth using just $. Mind the absence of ./ when writing to a file. We execute a file by adding a dot and a slash but we don't write to it like that.
t="test"
printf "import pymol
cmd.load("$t.pdb")" > script.py
