Marginalia

bash script usage from header comment

usage() {
  grep '^#' < "$0" | tail -n +2 | cut -c 3-
}

extract and compile text from multiple pdfs

for pdf_file in $(ls *.pdf); do
    heading=$(echo ${pdf_file/.pdf/})
    echo "\#\# ${heading//[-_]/ }\n" >> pdf_text.md

    pdftotext ${pdf_file}
    txt_file=${pdf_file/.pdf/.txt}
    cat ${txt_file} >> pdf_text.md
    echo "\n\n" >> pdf_text.md

    mkdir processed
    mv ${pdf_file} ${txt_file} processed/
done

copy files to remote server

scp <source-filepath> <user@address:destination-filepath>

# Examples:
scp /path/to/file.pdf [email protected]:/path/to/destination

# Or, using an ssh config entry alias `target_server`
scp /path/to/file.pdf target_server:/path/to/destination

search for deleted files by filename pattern

git log --diff-filter=D --name-only --pretty=format:"%h %ad %s" -- '*pattern*'

aws cli s3, cloudformation, and lambda facilities

aws s3 ls
aws s3 cp [file-name] s3://[bucket]/[object-path]
aws cloudformation create-stack --stack-name [app-name] --template-body file://[filename].yaml --capabilities CAPABILITY_NAMED_IAM
aws cloudformation update-stack --stack-name [app-name] --template-body file://[filename].yaml --capabilities CAPABILITY_NAMED_IAM
aws lambda update-function-code --function-name [function-name] --zip-file fileb://[filename].zip

extract plain text from pdfs

npm install -g easy-pdf-parser
pdftotext document.pdf