tips.sh

perl -pi -e 's/print/echo/g' SomeFile.txt
# sed -i -e 's/print/echo/g' SomeFile.txt

# avg 
cat count.txt | awk '{sum+=$1} END {print "Average = ", sum/NR}' 

# 分割压缩文件
tar cvjf - package | split -b 10m - package.tar.bz2.
cat package.tar.bz2.* | tar xjv

# OS X Lion
chflags nohidden ~/Library
chflags hidden ~/Library

# Mac OS X
sudo mdutil -i off "/Volumes/Time Machine Backups/"
defaults write com.apple.finder AppleShowAllFiles -bool true
KillAll Finder

# uri = 'mysql://user:passwd@localhost:3306/dbname?charset=utf8'
# uri = 'sqlite:////tmp/dbname.db'

# uri = mysql://user:passwd@localhost:3306/dbname?charset=utf8
# uri = sqlite:////tmp/dbname.db

sed -e 's!mysql\([^'\'']*\)!sqlite:////tmp/dbname.db!'
# or
sed -e "s!mysql\([^']*\)!sqlite:////tmp/dbname.db!"

# 行首添加字符
sed 's/^/HEAD&/g' test.txt

# 行尾添加字符
sed 's/$/&TAIL/g' test.txt

rename "s/\.html/\.php/" *     //把.html 后缀的改成 .php后缀

# awk 最后一段
awk '{print $NF}'

# awk 平均数
awk '{sum+=$1} END {print sum/NR}'

defaults read NSGlobalDomain 貌似这个又区分大小写

~/Library/Preferences 下面有很多 plist 文件，看了大概就知道了，后面那个就不清楚了

这么早起？

…

On Jan 4, 2012 7:34 AM, "Ratazzi" < ***@***.***> wrote: ~/Library/Preferences 下面有很多 plist 文件，看了大概就知道了，后面那个就不清楚了 --- Reply to this email directly or view it on GitHub: https://gist.github.com/1101039