Quoting bash 'sed' commands within python functions

Question

I'm using a build based on python. I can define python functions like

do_install () { ... }

I can run bash commands within these functions, like

do_install () {
      sed '' ...
}

I am running a sed command in one of these functions

 sed -ri 's/PREFIX=/PREFIX=.../'

Within the quotes I need to use a global python variable, say. ${VARIABLE}, like

sed -ri 's/PREFIX/PREFIX=${VARIABLE}/'

How do I quote the variable to be identified as a python global variable. I tried a number of things including, using different string quoting in sed

Thanks in advance.

Are you sure that you are using Python? `do_install () { ... }` is not a valid python function declaration. — mhawke, May 24 '14 at 10:22
possible duplicate of [sed substitution with bash variables](http://stackoverflow.com/questions/7680504/sed-substitution-with-bash-variables) — tripleee, May 24 '14 at 10:45
`sed -ri "s/PREFIX/PREFIX=${VARIABLE}/"` and where is Python? — Jayesh Bhoi, May 24 '14 at 13:37

score 1 · Answer 1 · answered May 24 '14 at 10:22

1

Use double quotes " instead of simple.

By the way the code that you are posting is a simple bash script it has nothing of python.

answered May 24 '14 at 10:22

Francisco Puga

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Quoting bash 'sed' commands within python functions

1 Answers1