find

Locate files by name, type, size, owner, and date — then act on them.

find <path> <conditions> <actions>General form

find . -name "*.txt"Find .txt files in cwd

find / -name configSearch entire filesystem

-name "*.c"Match by filename pattern

-iname "*.C"Case-insensitive name match

-type fRegular files

-type dDirectories

-type lSymbolic links

-regex PATTERNFull path regex

-size +10MLarger than 10 MiB

-size -128cSmaller than 128 bytes

-newer file.txtNewer than reference file

-mtime -1Modified in last 24 hours

-mtime +7Modified more than 7 days ago

-atime 0Accessed within last 24 hours

-user usernameOwned by user

-nouserNo valid owner

\! -name "*.c"NOT operator

\( expr1 -or expr2 \)OR grouping

-depth 2At least 3 levels deep

-printPrint matching paths (default)

-deleteDelete matched files

-exec cmd {} \;Run command on each match

find . -name '*.jpg' -exec rm {} \;Delete all JPEGs

find . -type f -mtime +30Files untouched 30+ days

find . -size +100MFiles larger than 100 MB

find . -name '*.ts' -not -path '*/node_modules/*'Exclude node_modules

More Tools cheatsheets

Git

Everyday version control — branches, commits, undo, and rebase.

Bash

Shell scripting, redirection, and command-line survival.

Regex

Pattern matching — anchors, classes, quantifiers, groups.