How to tell YASnippet to ignore placeholder?

Question

I have a shell script which uses an array to check dependencies. I'd like to make this into a YASnippet, but YAS recognizes the array value statement ${dependencies[@]} as a placeholder. How can I tell YAS to ignore this placeholder?

# key: write.bash
# name: write.bash
# --
#!/bin/bash

dependencies=("${1:dependency 1}" "${2:dependency 2}")

for i in ${dependencies[@]}; do
if [ "$(which $i)" = "" ] ; then
    echo "EARLY EXIT- $i needs to be installed and on PATH"
    exit 0
    else
    echo "$i installed"
fi;
done 

Answer 1

Use \ to escape $ in ${dependencies[@]}, as noted here. The complete snippet is below:

# key: write.bash
# name: write.bash
# --
#!/bin/bash

dependencies=("${1:dependency 1}" "${2:dependency 2}")

for i in \${dependencies[@]}; do
if [ "$(which $i)" = "" ] ; then
    echo "EARLY EXIT- $i needs to be installed and on PATH"
    exit 0
    else
    echo "$i installed"
fi;
done