About
Use perl to search and replace across many files.
Search and replace
perl -p -i -e 's/hello/hola/g' *.txt
Back-referencing
Use \1 et al.
# '@include align-items(center);' => 'align-items: center;'
perl -p -i -e "s/\@include (align-items)\((.*)\);/\1: \2;/g"
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