ab.bash

set -o xtrace

v=(a/b b/c d)

echo 'a/b b/c d
a/b b/c
a/b/b/cd' > /tmp/test.txt

cp /tmp/test{,2}.txt

# 1:

sed -i "/${v[*]//\//\\/}/d" /tmp/test.txt

# 2:
mv /tmp/test2.txt{,.bk}

while read -r line
do
  [[ ! $line == ${v[*]} ]] && echo "$line"
done </tmp/test2.txt.bk >/tmp/test2.txt

cmp /tmp/test{,2}.txt