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#pipes (3)

grep — Pattern Search

Search files and streams using fixed strings, extended regex, or PCRE. Covers all major flags, context, recursive search, and pipeline patterns.
grep regex search text-processing cli pipes

tr & xargs — Transform and Execute

Translate, squeeze, and delete characters with tr. Build and execute command lines from stdin with xargs. Includes parallel execution, NUL safety, and pipeline recipes.
tr xargs text-processing cli parallel pipes

Bash Redirection & Pipes

stdin, stdout, stderr redirection operators and pipeline patterns in bash.
bash shell redirection pipes