一些shell脚本,sed替换

一，将SVN版本信息添加到我们的程序版本中

1，使用sed命令修改源代码/Makefile中的版本号，添加SVN版本信息：

#!/bin/sh

#File Name:　build-l200.sh

#Get the SVN version number

svn_ver=`svn up|grep revision|awk -F' ' '{ print $3 }'|awk -F'.' '{print $1}'`

echo "SVN Version: $svn_ver"

#Find the Version line

line=`sed -n '/#define DROPBEAR_VERSION/=' options.h`

#Instead the original version by mine

sed -i -e ${line}s"/.*/#define DROPBEAR_VERSION \"0.51 Build ${svn_ver}\"/" options.h

#compile the source code

make

2， 将SVN版本信息放入version.h头文件中，在源代码中在包含该头文件并引用他们：

a, makefile中定义版本信息并调用scripts/mkversion脚本:

CROSS_COMPILE =

ARCH= L200

MAJOR=1

MINOR=0

REVER=0

SVNUP=1

all: entry version at

version:

@echo " ";

@echo " =========================================";

@echo " ** Create Software Version Head File **";

@echo " =========================================";

sh scripts/mkversion ${SVNUP} ${MAJOR} ${MINOR} ${REVER}

b, scripts/mkversion脚本：

#!/bin/sh

GET_SVN=$1

MAJOR=$2

MINOR=$3

REVER=$4

if [ $GET_SVN -eq 0 ]

then

echo "============ Skip svn update ============"

exit;

else

echo "============ SVN update and get svn version now ============"

svn up

svn_ver=`svn up|grep revision|awk -F' ' '{ print $3 }'|awk -F'.' '{print $1}'`

echo "/* This is generate by makefile , don't Edit it by hand */" > version.h

echo "#define MAJOR ${MAJOR}" >>version.h

echo "#define MINOR ${MINOR}" >>version.h

echo "#define REVER ${REVER}" >>version.h

if [ ! -z $svn_ver ]

then

echo "#define SVNVER $svn_ver" >>version.h

else

echo "#define SVNVER 0000" >>version.h

fi

fi

3, 使用sed修改Makefile文件： 替换行/行前插入/行后插入

例一：

FILE=src/pkcs11/Makefile

#将文件中所有的$KEY替换成$INSTEAD

KEY="-module -shared -avoid-version -no-undefined"

INSTEAD="-module -static -avoid-version -no-undefined"

sed -i -e "s/${KEY}/$INSTEAD/g" $FILE

#找到某一行，并在其后插入一些行；

FILE=src/libopensc/Makefile

line=`sed -n '/all: all-am/=' $FILE`

#替换该行内容

sed -i -e ${line}s"/.*/all: all-am L200_rebuildLib/" $FILE

#在该行后插入一些新的行

sed -i -e `expr $line + 1`a"L200_rebuildLib:" $FILE

sed -i -e `expr $line + 2`a"\\\tcp \`dirname \${abs_top_srcdir}\`/pcsc-lite-1.5.5/src/.libs/libpcscl

ite.a \${abs_srcdir}/.libs" $FILE

sed -i -e `expr $line + 3`a"\\\tsh \${abs_srcdir}/L200_rebuildLib.sh \${abs_srcdir}\n" $FILE

找到某一行，在该行前插入一行:

FILE=src/Makefile

#找到要修改的行号

line=`sed -n '/CFLAGS = -Wall -fno-common/=' $FILE`

#替换该行的内容

sed -i -e ${line}s"/.*/CFLAGS = -Wall -fno-common -O2 -Wl,-elf2flt='-s 262144'/" $FILE

#在该行前插入一行注释

sed -i -e ${line}i"# Set stack size as 256K" $FILE

找到某一行，删除该行第一个字符:

KEY="#am__EXEEXT_1 = cryptoflex-tool"

line=`sed -n "/$KEY/=" $FILE`

if [ $line ] ; then #如果变量不为空，即找到该行

sed -i -e "${line}s/.//1" $FILE #这里的1即为第一个字符，若修改第二个字符则改为2

sed -i -e "`expr $line + 1`s/.//1" $FILE

sed -i -e "`expr $line + 2`s/.//1" $FILE

fi

例二：

CROSS=/opt/buildroot_350/build_arm/staging_dir/bin/arm-linux-uclibc-

# | -----------------------------

# | Cross compile iproute2-2.6.34

# | -----------------------------

if [ ! -d iproute2-2.6.34 ] ; then

tar -xjf iproute2-2.6.34.tar.bz2

fi

if [ -d iproute2-2.6.34 ]; then

cd iproute2-2.6.34

FILE=Makefile

sed -i -e 38s"/.*/SUBDIRS=lib tc/" $FILE

line=`sed -n '/^CC = gcc$/=' $FILE`

if [ $line ]; then

sed -i -e ${line}s"@.*@CROSS=$CROSS@" $FILE //由于$CROSS中中包含sed默认分隔符"\",所以我们这里改用@作为分隔符

sed -i -e `expr $line + 0`a"CC = \${CROSS}gcc" $FILE

sed -i -e `expr $line + 1`a"AR=\${CROSS}ar" $FILE

sed -i -e `expr $line + 2`a"AS=\${CROSS}as" $FILE

sed -i -e `expr $line + 3`a"LD=\${CROSS}ld" $FILE

sed -i -e `expr $line + 4`a"RANLIB=\${CROSS}ranlib" $FILE

fi

make && cd -

fi

# | -----------------------------

# | Cross compile redir-2.2.1

# | -----------------------------

if [ ! -d redir-2.2.1 ] ; then

tar -xzf redir-2.2.1.tar.gz

fi

if [ -d redir-2.2.1 ]; then

cd redir-2.2.1

FILE=Makefile

sed -i -e s":^CC = gcc$:CC = ${CROSS}gcc:" $FILE //这里选用":"作为sed 分隔符

make && cd -

fi

二，一些常用的alias:

alias vt100='export TERM=vt100'

alias linux='export TERM=linux'

alias maek='make'

alias rmsvn='find -name .svn -exec rm -rf {} \;'

alias rmgdb='find -iname "*.gdb" -exec rm -rf {} \;'

alias rmdep='find -name .depend -exec rm -rf {} \;'

alias myindent='indent -npro -kr -bl -nce -bli0 -i2 -ts2 -sob -l80 -nfc1 -ss -ncs'

alias myctages='ctags --c-kinds=+defglmnstuvx --langmap=c:.c.h.ho.hem.het.hec.hev.him.hit.hic.hiv -R .'

alias nocvim='mv ~/.vimrc ~/.vimrcb'

alias cvim='mv ~/.vimrcb ~/.vimrc'

alias mntwinxp='sudo mount -t cifs -o username="username",password="password" //Winxp_ipaddr/linux /home/username/winxp/'

用于在文件中查找的脚本：

#!/bin/sh

# Description: This shell script used to grep the "key" in all the files

find -iname "*$suffix" | xargs grep "$key"

find -iname "*$suffix" | xargs grep "\<$key\>"

# in current folder.

# Author: guowenxue(guowenxue@gmail.com)

# Version: 1.0.0 (Release by guowenxue on 04th Feb. 2010)

# ChangeLog: None

#

if [ $# -lt 1 ] ; then

echo " Usage: $0 key [-g] [suffix]"

echo "Example1: mygrep haha"

echo "Example2: mygrep haha -g"

echo "Example1: mygrep haha *.c"

echo "Example1: mygrep haha -g *.c"

exit;

fi

key=$1 #The grep key

if [ $# = 1 ] ; then

grep -n "$key" -r *

elif [ $# = 2 ] ; then

if [ $2 = "-g" ] ; then

grep -n "\<$key\>" -r *

else

suffix=$2

find -iname "$suffix" | xargs grep -n "$key"

fi

else # Arguments more than 3

if [ $2 = "-g" ] ; then

suffix=$3

elif [ $3 = "-g" ]; then

suffix=$2

fi

find -iname "$suffix" | xargs grep -n "\<$key\>"

fi

[guowenxue@localhost drivers]$ mygrep 15000400

csps/lpc313x/include/lpc313x_chip.h:#define LCD_INTERFACE_BASE 0x15000400

[guowenxue@localhost drivers]$ mygrep 15000400 .h

./csps/lpc313x/include/lpc313x_chip.h:#define LCD_INTERFACE_BASE 0x15000400

[guowenxue@localhost drivers]$ mygrep 15000400 .h -g

[guowenxue@localhost drivers]$ mygrep 15000400 -g .h

Sed命令去掉补丁文件中首字符"+",获取C代码文件：

[guowenxue@localhost spi]$ sed -i 's/^+//' tsc2046.h

清除所有ARP缓存表：

for ip in `seq 1 6`; do arp -d 192.168.5.$ip; done