← из прошлого урока
The HTTPS handshake is no longer magic. Now to everyday SRE tooling:
xargs. Running a command in bulk over a list, the protective
-print0, the difference between -I and -n, and parallelism
through -P.
Средний
14 мин · урок входит в курс «Средний»
In the cmd-find and cmd-grep lesson you already saw the idiom
find ... -print0 | xargs -0 grep. Here are three xargs features
that make a pipeline fast and predictable:
-I {}: substitute the file name in the middle of the command-n N: split the input into batches of N arguments-P N: run batches in parallelReady-made parallelism, no bash functions and no GNU parallel. An overview of both tools is in xargs-and-find-exec.
Чтобы запустить sandbox и пройти этот урок целиком, нужен соответствующий курс. Внутри - ещё много практических уроков того же уровня и сквозной прогресс.
дальше →
xargs covers "do this in bulk" in a single line. Next come the details of redirects and file descriptors: process substitution, here-docs, and custom FDs through exec. These are the last small pieces before the services lessons.