Ag （the_silver_searcher） 安装使用

\#!/usr/bin/env bash
\#Author Leslie Guan
\#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

apt-get install silversearcher-ag

\#!/usr/bin/env bash
\#Author Leslie Guan
\#make sure you have the root permission
\#Usage . install_Ag4Vim.sh
set -x
TEMP_DIR=$(mktemp -d Leslie.Guan.XXXXXX)
cd ${TEMP_DIR}
wget https://github.com/rking/ag.vim/archive/master.zip
TAR_DIR=$(unzip *.zip)
TAR_DIR=${TAR_DIR%%/*}
TAR_DIR=${TAR_DIR##*:}
cd ${TAR_DIR}
cp cp {plugin,autoload,doc} /usr/share/vim/vim73/ -rf 
cd ../../
rm -rf ${TEMP_DIR}

set +x

ag HelloWorld
ag HelloWorld path/to/search

Ag HelloWorld
Ag HelloWorld path/to/search

e    to open file and close the quickfix window
o    to open (same as enter)
go   to preview file (open but maintain focus on ag.vim results)
t    to open in new tab
T    to open in new tab silently
h    to open in horizontal split
H    to open in horizontal split silently
v    to open in vertical split
gv   to open in vertical split silently
q    to close the quickfix window

man ag

time ag -i activity
real    2m42.568s
user    0m16.049s
sys 1m29.358s

time ack -i activity
real    5m17.780s
user    1m35.830s
sys 0m17.521s

time grep -Hrni activity .

It searches code about 3–5× faster than ack.
It ignores file patterns from your .gitignore and .hgignore.
If there are files in your source repo you don‘t want to search, just add their patterns to a .agignore file. *cough* extern *cough*
The command name is 33% shorter than ack!