超快的文件搜索工具Ag

文章目录

[隐藏]

• 前言
• 安装
  • 下载源码
  • 安装PCRE
  • 安装lzma
  • 安装Ag
• 命令
• 自动安装脚本示例
• pattern
• 后言

前言

Ag 是类似ack， grep的工具, 它来在文件中搜索相应关键字。
官方列出了几点选择它的理由：

• 它比ack还要快 （和grep不在一个数量级上）
• 它会忽略.gitignore和.hgignore中的匹配文件
• 如果有你想忽略的文件，你需要将(congh .min.js cough*)加入到.ignore文件中
• 它的命令名称更短:-)

安装

下载源码

下载地址： http://geoff.greer.fm/ag

安装PCRE

目前已经有PCRE2，但这里需要PCRE

https://downloads.sourceforge.net/pcre/pcre-8.41.tar.bz2

从官网下载.tar.gz的版本，注意不要下载zip版本

下载后解压缩正常安装

./configure --prefix=/usr                                  --docdir=/usr/share/doc/pcre-8.41               --enable-unicode-properties                    --enable-pcre16                                --enable-pcre32                                --enable-pcregrep-libz                          --enable-pcregrep-libbz2                        --enable-pcretest-libreadline                  --disable-static                &&  make && make install  

默认是安装到/usr/local下

安装lzma

yum install xz-libs.x86_64 xz-devel.x86_64  

安装Ag

./configure PCRE_CFLAGS="-I /usr/local/include" PCRE_LIBS="-L /usr/local/lib -lpcre" && make && make install  

命令

Usage: ag [FILE-TYPE] [OPTIONS] PATTERN [PATH]    Recursively search for PATTERN in PATH.  Like grep or ack, but faster.    Example:  ag -i foo /bar/    Output Options:  --ackmate Print results in AckMate-parseable format  -A --after [LINES] Print lines after match (Default: 2)  -B --before [LINES] Print lines before match (Default: 2)  --[no]break Print newlines between matches in different files  (Enabled by default)  -c --count Only print the number of matches in each file.  (This often differs from the number of matching lines)  --[no]color Print color codes in results (Enabled by default)  --color-line-number Color codes for line numbers (Default: 1;33)  --color-match Color codes for result match numbers (Default: 30;43)  --color-path Color codes for path names (Default: 1;32)  --column Print column numbers in results  --[no]filename Print file names (Enabled unless searching a single file)  -H --[no]heading Print file names before each file's matches  (Enabled by default)  -C --context [LINES] Print lines before and after matches (Default: 2)  --[no]group Same as --[no]break --[no]heading  -g --filename-pattern PATTERN  Print filenames matching PATTERN  -l --files-with-matches Only print filenames that contain matches  (don't print the matching lines)  -L --files-without-matches  Only print filenames that don't contain matches  --print-all-files Print headings for all files searched, even those that  don't contain matches  --[no]numbers Print line numbers. Default is to omit line numbers  when searching streams  -o --only-matching Prints only the matching part of the lines  --print-long-lines Print matches on very long lines (Default: >2k characters)  --passthrough When searching a stream, print all lines even if they  don't match  --silent Suppress all log messages, including errors  --stats Print stats (files scanned, time taken, etc.)  --stats-only Print stats and nothing else.  (Same as --count when searching a single file)  --vimgrep Print results like vim's :vimgrep /pattern/g would  (it reports every match on the line)  -0 --null --print0 Separate filenames with null (for 'xargs -0')    Search Options:  -a --all-types Search all files (doesn't include hidden files  or patterns from ignore files)  -D --debug Ridiculous debugging (probably not useful)  --depth NUM Search up to NUM directories deep (Default: 25)  -f --follow Follow symlinks  -F --fixed-strings Alias for --literal for compatibility with grep  -G --file-search-regex PATTERN Limit search to filenames matching PATTERN  --hidden Search hidden files (obeys .*ignore files)  -i --ignore-case Match case insensitively  --ignore PATTERN Ignore files/directories matching PATTERN  (literal file/directory names also allowed)  --ignore-dir NAME Alias for --ignore for compatibility with ack.  -m --max-count NUM Skip the rest of a file after NUM matches (Default: 10,000)  --one-device Don't follow links to other devices.  -p --path-to-ignore STRING  Use .ignore file at STRING  -Q --literal Don't parse PATTERN as a regular expression  -s --case-sensitive Match case sensitively  -S --smart-case Match case insensitively unless PATTERN contains  uppercase characters (Enabled by default)  --search-binary Search binary files for matches  -t --all-text Search all text files (doesn't include hidden files)  -u --unrestricted Search all files (ignore .ignore, .gitignore, etc.;  searches binary and hidden files as well)  -U --skip-vcs-ignores Ignore VCS ignore files  (.gitignore, .hgignore; still obey .ignore)  -v --invert-match  -w --word-regexp Only match whole words  -W --width NUM Truncate match lines after NUM characters  -z --search-zip Search contents of compressed (e.g., gzip) files    File Types:  The search can be restricted to certain types of files. Example:  ag --html needle  - Searches for 'needle' in files with suffix .htm, .html, .shtml or .xhtml.    For a list of supported file types run:  ag --list-file-types    ag was originally created by Geoff Greer. More information (and the latest release)  can be found at http://geoff.greer.fm/ag  

自动安装脚本示例

#!/usr/bin/env bash  #Author: Harris Zhu  #Dep: make sure you have the root permission  #Usage . install_ag.sh  set -x  TEMP_DIR=$(mktemp -d Leslie.Guan.XXXXXX)  cd ${TEMP_DIR}  wget https://github.com/ggreer/the_silver_searcher/archive/master.zip  TAR_DIR=$(unzip *.zip)  TAR_DIR=${TAR_DIR%%/*}  TAR_DIR=${TAR_DIR##*:}  cd ${TAR_DIR}  apt-get install -y automake pkg-config libpcre3-dev zlib1g-dev liblzma-dev --force-yes  ./build.sh && make install  cd ../../  rm -rf ${TEMP_DIR}  ag -V  set +x  

pattern

示例一

由上面例子可以知道ag的pattern支持s, w等正则

后言

ag的使用非常简单，它的选项也不多，所以我在上面列出了它的help内容。

原文出处：segmentfault -> https://segmentfault.com/a/1190000011328038