awk中使用shell變數

var=hello

echo "test"|awk '{print "'"$var"'"}'

-->hello

Use syslinux to boot Windows in the second partition

If your Windows is in the 2nd partition, and syslinux is in the 1st partition,
you want to first boot to syslinux and then choose"Windows" item and go there, how do you do that?

1. Edit your windows C:\BOOT.ini
chang partition(1) to partition(2)

2. Edit your 1st partition's syslinux.cfg
LABEL Windows
MENU LABEL ^Windows
KERNEL chain.c32
APPEND hd0 2
TEXT HELP
Boot to Windows
ENDTEXT

The keypoint is "hd0 2". This is very very tricky!! Since we use "hd0 1" in Lilo and Grub. But we use "hd0 2" in syslinux.

How to build ntfs-3g (2009.11.14) ?

How to build ntfs-3g (2009.11.14) ?

If you make and have an error about secaudit.o

Then you need to install package libattr1-dev.

(Also it was not designed to be mandatory. See http://tuxera.com/forum/viewtopic.php?f=3&t=1151&p=5191&hilit=secaudit+secaudit&sid=94d2d635f4de0e2f0acb7962b6459aa0#p5191)

Bash kill a process with a specified name

kill `ps x | awk '$5=="process_name" {printf $1}'`

============

For example, to kill "epiphany-browser":
ps x
->23243 ? Sl 0:57 epiphany-browser

kill `ps x | awk '$5=="epiphany-browser" {printf $1}'`

,where
$1=23243 (pid)
$5=epiphany-browser

Bash string compare greater less

比較字串順序大小用 \> 及 \<，大於等於或小於等於要用 ! 配合來實作。

if [ $str \> $str2 ]; then
echo "greater"
fi

if [ ! $str \< $str2 ]; then
echo "greater or equal"
fi

實例應用:
g_host_os_ver=`uname -r`
if [ ! $g_host_os_ver \< "2.6.28" ]; then
ko=$(echo $ko|sed 's/^\///g') # remove the first /
fi