💡 jq CLI Sheet: JSON Data Filtering & Slicing — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for jq CLI Sheet: JSON Data Filtering & Slicing. Exec main bash Copy #json to pretty $jsonSTDOUT | jq ” echo ‘\”foo\”:\”bar\”‘ | jq ” curl http://foo.bar.com/api/v1/test | jq ” #배열 내 특정 순번을…

💡 cURL CLI Sheet: HTTP Headers & REST API — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for cURL CLI Sheet: HTTP Headers & REST API. Exec bash Copy #curl test curl -sSL -o /dev/null -D – ${URL} #download 받기(wget) curl -LO ${URL} curl -L ${URL} -o ${FILENAME} #response Header 포함…

💡 Linux free Command Analysis: Buffers, Cache — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Linux free Command Analysis: Buffers, Cache. bash Copy free -h #사람이 보기 편한 단위 RAM unused Free memory: Simply memory that is not currently being used for any tasks. Available memory: Memory that is actually…

💡 Snap Package Manager Sheet: Sandboxed — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Snap Package Manager Sheet: Sandboxed. Daemon Install https://snapcraft.io/docs/installing-snapd Rocky bash Copy sudo dnf install epel-release sudo dnf upgrade sudo yum install snapd sudo systemctl enable –now snapd.socket # /snap 디렉토리 생성. (classic 지원 추가) sudo ln…