[SOLVED] How to save all variables from directory, in one file

Issue

I would like to save all the variables that are in the directory in a separate file, cut out duplicates To begin with, I wrote all the lines with global variables in a separate file

grep -rI "\$.*" folder/ >> output.txt

Then I tried to pull out the variables of this file

cat output.txt | sed /\$.*.[{A-Z}]/p

And output was not what I expected

So how can I take needed variables, when file after grep like this:

something.text_text.txt:    - export IMAGE_NAME=${MY_REGISTY}/$MY_PR/${MY_PRNNN} something.text_text.txt:
- docker build --network host -t ${IMAGE_NAME}:${VERSION} -f $DILE_PATH --build-arg setupfile=$SET_FIL> something.text_text.txt: 
- docker push ${IMAGE_NAME}:${VERSION} something.text_text.txt:    - docker tag ${IMAGE_NAME}:${VERSION} ${IMAGE_NAME}:${MY_BUILD_REF_NAME} something.text_text.txt:    - docker push ${IMAGE_NAME}:${MY_BUILD_REF_NAME} something.text.txt:  
- /^rel_.*$/ something.text.txt:    - eval $(ssh-agent -s) something.text.txt:    - chmod 400 $MY_SSH_KEY something.text.txt:  
- ssh-add $MY_KEY something.text.txt:    - git checkout ${MY_BUIL_NAME} something.text.txt:    - git reset --hard origin/${MY_F_NAME} something.text.txt:    - mvn -s MY_settings.xml ${MTS} license:add-third-party something.text.txt:    - cat ${LICENSE_LIST_FILE} something.text.txt:      POM_XML_COMMIT_HASH_LOCAL=$(git log --oneline --follow -- pom.xml | awk '{ print $1 }' | head -n 1) || true something.text.txt:      echo POMIT_HASH_LOCAL=${PCOMMIT_HASH_LOCAL} something.text.txt:      POM_XML_COMMIT_HASH_REMOTE=$(git log --oneline origin/${MY_BUILD_REF_NAME} --follow -- pom.xml | awk '{ print $1 }' | h> something.text.txt:      echo POM_XML_COMMIT_HASH_REMOTE=${POM_OMMIT_HASH_REMOTE} something.text.txt:      if [[ ${POM_XML_COMMIT_HASH_LOCAL} = ${POMMIT_HASH_REMOTE} ]]; then something.text.txt:        echo "File pom.xml is the same for local and origin ${MY_BUILD_REF_NAME} branch." something.text.txt:        echo "New commits are presented in origin/${MY_BUILD_REF} branch for pom.xml file. Skipping." something.text.txt:    - git add -f ${LICENSE_LIST_FILE} something.text.txt:    - export MY_PUSH_URL=`echo $MY_REPOSITORY_URL | perl -pe 's#.*@(.+?(\:\d+)?)/#git@\1:#'` something.text.txt:    - git remote set-url --push origin "${MY_PUSH_URL}" something.text.txt:    - git push -f -o ci.skip origin ${MY_BUILD_REF_NAME} something.text_tests.txt:    - docker login -u $MY_REGISTRY_USER -p $MY_REGISTRY_PASSWORD $MY_REGISTRY something.text_tests.txt:    - export CONFIG_FILE=${HOME}/.docker/config.json something.text_tests.txt:   
- export VERSION=$(cat current_version) something.text_tests.txt:    - export MY_PROJECT_NAME_UPPER_CASE=$(echo ${MY_PROJECT_NAME} | tr a-z A-Z) something.text_tests.txt:    - export ${MY_PROJECUPPER_CASE}_IMAGE=${MYISTRY}/${MY_PROJECT_PATH}/${MY_PROJECT_NAME}:${VERSION} something.text_tests.txt:    - docker pull ${MY_REG}/${MY_PR}/${MY_PROJEC}:${VERS}

Solution

Try

grep -Po '\$\.*.[{_A-Z}]+' output.txt

• -P makes grep using the Perl syntax
• -o outputs only the matching parts

Now, improve your regex. For starters, I have already added _ to it, but it would still find ${X}{Y} (false positive) or not find ${lowercase} (false negative) and just partly find ${DIR#/} (because of extra syntax).

Answered By - pmf

Answer Checked By - Cary Denson (WPSolving Admin)