f)Lists or filters file system objects (eg files)
f lists or filters lists of file system objects, such as files, directories, etc. f provides a quick way to output file system items that confirm to specific criteria.
You define this criteria by using +flags (eg +s for all symlinks) and optionally then restricting that criteria with -flags (eg -x to remove all executable items). All flags supported as + are also supported as a -.
By default f will return no results. You need to include +flags.
Output is a JSON array as this format preserves whitespace in file names.
f options -> <stdout>
<stdin> -> f options -> <stdout>f +dReturn file and directories but exclude symlinks:
f +fd -sFilter out files in a list (eg created by g) using conditions set by f:
g '*.go' -> f +f
rx '\.(txt|md)' -> f +fw+ include files (pair this with any other flag apart from -)- exclude files (pair this with any other flag apart from +)? deprecated – use i insteadD regular directoriesE other read permissionsF regular files (exc symlinks, devices, sockets, named pipes, etc)Q other write permissionsR user read permissionsS socketsW user write permissionsX user execute permissionsZ other execute permissionsb block devicesc character devicesd all directories (inc symlinks)e group read permissionsf all files (inc symlinks, devices, sockets, name pipes, etc)i irregular files (nothing else is known about these files)l symlinksp POSIX named pipes (FIFO)q group write permissionsr read permissions (user, group, or other)s symlinksw write permissions (user, group, or other)x execute permissions (user, group, or other)z group execute permissions+ flags are always matched first. Then the - flags are used to filter out any matches from the + flags.
fg): Glob pattern matching for file system objects (eg *.txt)rx): Regexp pattern matching for file system objects (eg .*\\.txt)json: JavaScript Object Notation (JSON)This document was generated from builtins/core/io/f_doc.yaml.
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