blue119

查看連往某位址會走的路由

$ ip route get 8.8.8.8

qerter

# iptables -t nat -A POSTROUTING --source 192.168.2.0/24 --destination 10.1.2.0/24 -j MASQUERADE

yan

Compile 32-bit program on 64-bit system

# apt-get install lib32z1-dev
$ gcc -m32 -o output32 hello.c

nm - list symbols from object files

$ nm libxxx.so

在 golang 使用 C static library How do you statically link a c library in go using cgo? - Stack Overflow http://stackoverflow.com/questions/16747021/how-do-you-statically-link-a-c-library-in-go-using-cgo

在 64 位元系統編譯 32 位元 golang 執行檔 (不支援 cgo)

$ GOARCH=386 go build

windows - Compile 32 bit binary on 64 bit system - Stack Overflow http://stackoverflow.com/questions/16552754/compile-32-bit-binary-on-64-bit-system
——– X Window rotate screen 旋轉 180 度

$ xrandr -o inverted
or 
$ xrandr --output LVDS1 --rotate inverted

恢復正常

$ xrandr -o normal
or
$ xrandr --output LVDS1 --rotate normal

SourcecodeBrowser 會分析變數、函式，還有 call graph http://sourcecodebrowser.com/