mirror of
https://github.com/BurntSushi/ripgrep.git
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155 lines
4.1 KiB
Smarty
155 lines
4.1 KiB
Smarty
rg(1)
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=====
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Name
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----
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rg - recursively search current directory for lines matching a pattern
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Synopsis
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--------
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*rg* [_OPTIONS_] _PATTERN_ [_PATH_...]
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*rg* [_OPTIONS_] *-e* _PATTERN_... [_PATH_...]
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*rg* [_OPTIONS_] *-f* _PATTERNFILE_... [_PATH_...]
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*rg* [_OPTIONS_] *--files* [_PATH_...]
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*rg* [_OPTIONS_] *--type-list*
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*rg* [_OPTIONS_] *--help*
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*rg* [_OPTIONS_] *--version*
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DESCRIPTION
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-----------
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ripgrep (rg) recursively searches your current directory for a regex pattern.
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By default, ripgrep will respect your `.gitignore` and automatically skip
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hidden files/directories and binary files.
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ripgrep's regex engine uses finite automata and guarantees linear time
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searching. Because of this, features like backreferences and arbitrary
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lookaround are not supported.
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REGEX SYNTAX
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------------
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ripgrep uses Rust's regex engine, which documents its syntax:
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https://docs.rs/regex/0.2.5/regex/#syntax
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ripgrep uses byte-oriented regexes, which has some additional documentation:
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https://docs.rs/regex/0.2.5/regex/bytes/index.html#syntax
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To a first approximation, ripgrep uses Perl-like regexes without look-around or
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backreferences. This makes them very similar to the "extended" (ERE) regular
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expressions supported by `egrep`, but with a few additional features like
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Unicode character classes.
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POSITIONAL ARGUMENTS
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--------------------
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_PATTERN_::
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A regular expression used for searching. To match a pattern beginning with a
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dash, use the -e/--regexp option.
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_PATH_::
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A file or directory to search. Directories are searched recursively. Paths
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specified expicitly on the command line override glob and ignore rules.
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OPTIONS
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-------
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{OPTIONS}
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EXIT STATUS
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-----------
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If ripgrep finds a match, then the exit status of the program is 0. If no match
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could be found, then the exit status is non-zero.
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CONFIGURATION FILES
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-------------------
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ripgrep supports reading configuration files that change ripgrep's default
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behavior. The format of the configuration file is an "rc" style and is very
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simple. It is defined by two rules:
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1. Every line is a shell argument, after trimming ASCII whitespace.
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2. Lines starting with _#_ (optionally preceded by any amount of
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ASCII whitespace) are ignored.
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ripgrep will look for a single configuration file if and only if the
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_RIPGREP_CONFIG_PATH_ environment variable is set and is non-empty.
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ripgrep will parse shell arguments from this file on startup and will
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behave as if the arguments in this file were prepended to any explicit
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arguments given to ripgrep on the command line.
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For example, if your ripgreprc file contained a single line:
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--smart-case
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then the following command
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RIPGREP_CONFIG_PATH=wherever/.ripgreprc rg foo
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would behave identically to the following command
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rg --smart-case foo
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ripgrep also provides a flag, *--no-config*, that when present will suppress
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any and all support for configuration. This includes any future support
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for auto-loading configuration files from pre-determined paths.
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Conflicts between configuration files and explicit arguments are handled
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exactly like conflicts in the same command line invocation. That is,
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this command:
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RIPGREP_CONFIG_PATH=wherever/.ripgreprc rg foo --case-sensitive
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is exactly equivalent to
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rg --smart-case foo --case-sensitive
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in which case, the *--case-sensitive* flag would override the *--smart-case*
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flag.
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SHELL COMPLETION
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----------------
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Shell completion files are included in the release tarball for Bash, Fish, Zsh
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and PowerShell.
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For *bash*, move `rg.bash` to `$XDG_CONFIG_HOME/bash_completion`
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or `/etc/bash_completion.d/`.
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For *fish*, move `rg.fish` to `$HOME/.config/fish/completions`.
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For *zsh*, move `_rg` to one of your `$fpath` directories.
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CAVEATS
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-------
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ripgrep may abort unexpectedly when using default settings if it searches a
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file that is simultaneously truncated. This behavior can be avoided by passing
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the --no-mmap flag which will forcefully disable the use of memory maps in all
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cases.
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VERSION
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-------
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{VERSION}
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HOMEPAGE
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--------
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https://github.com/BurntSushi/ripgrep
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Please report bugs and feature requests in the issue tracker.
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AUTHORS
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-------
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Andrew Gallant <jamslam@gmail.com>
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