Linux 使用随记

X window

* Switch display mode (1024 x 768, 800 x 600, 640, 480)
     Ctrl - Alt - + / -

* Switch desktop
     Ctrl - Alt - <Left> / <Right>


1.　Chinese Input： (only for FC4 / FC3)

/etc/X11/xinit/xinitrc.d/xinput.sh

# setup XMODIFIERS [ -z "$XMODIFIERS" -a -n "$XIM" ] && XMODIFIERS="@im=$XIM" [ -n "$XMODIFIERS" ] && export XMODIFIERS export XIM=htt export XIM_PROGRAM=httx export GTK_IM_MODULE=iiim gnome-im-settings-daemon >/dev/null # execute XIM_PROGRAM

export LC_CTYPE=zh_CN.UTF-8


2.  tcpdump

tcpdump -s 2000 -w web.log port 80
tcpdump -nnXs 2000 -r web.log | less


3.  gdb

3.1 C structure style show information
set print pretty on

3.2 Unlimit string content
set print element 0

3.3 Show memory
x/100cb variable
x/100b 0x400000

3.4 others
handle SIGPIPE nostop
handle SIGPIPE noprint
set args -X