sed

Update value in file

export NTTS_PRODUCT_PREFIX_SUFFIX=cntts
export PROMOTED_METAPACKAGE_VERSION=24.03.0

$ sed -i "s/crnc-tts-neuraltts.products.${NTTS_PRODUCT_PREFIX_SUFFIX}==.*/crnc-tts-neuraltts.products.${NTTS_PRODUCT_PREFIX_SUFFIX}==${PROMOTED_METAPACKAGE_VERSION}\"/g" "${NTTS_PRODUCT_PREFIX_SUFFIX}_run_environment.yaml"

  • -i defines that the file in-place is edited (no backup suffix provided)

  • s/ marks the begin of the regular expression, the single / marks its end

  • the /g at the end, defines to perform global substitution, where the match for the regular expression is replaces by the string between / and /g

  • the filename argument (at the end) defines the file to be edited

sed -i "s/[pattern]/[replacement]/g <filename>"

Hint

For macOS, use the following pattern for the in-place replacement:

sed -i "" "s/[pattern]/[replacement]/g <filename>"