以前全局搜字符串时候经常搜到support-v4/7/13的字符串，逆向时候烦的不行，写了一个轮子，专门删除dex里面的这部分代码。
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if [ "$#" -ne 1 -a "$#" -ne 2 ];then echo "Delete support-v4/v7/v13 classes in dex or apk. Usage: ./del-support.sh input-dex/apk [output-dex/apk] Sample: ./del-support.sh classes.dex out.dex ./del-support.sh input.apk output.apk Author: LeadroyaL Time: 2018/3/5" exit fi echo "GOGOGO!" if [[ $1 == *.dex ]];then echo "dex file!" t=dex filename=${1%%.dex} fi if [[ $1 == *.apk ]];then echo "apk file!" t=apk filename=${1%%.apk} fi echo type is $t and filename is $filename if [[ $t == apk ]];then unzip $1 classes.dex fi java -jar baksmali.jar d $1 rm -rf out/android/support/ java -jar smali.jar a out/ if [ "$#" -eq 1 ];then if [[ $t == apk ]];then o="output.apk" else o="out.dex" fi else o=$2 fi if [[ $t == apk ]];then if [[ $o != *.apk ]];then o=$o.apk else o=$o fi mv out.dex classes.dex cp $1 $o zip $o -u classes.dex else mv out.dex $o fi echo Success and $o generated. |
第一次写shell脚本，坑的要死，记一下几个坑：
- [] 和 [[]] 是不一样的，正则匹配字符串时候千万不能写 [ $1 == *.dex ] ，要写 [[ $1 == *.dex ]] ，前者*.dex的意义是补全当前目录下的所有.dex文件
- ${xxxx}可以进行字符串的拼接删除操作
效果：
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➜ /tmp ./del-support.sh app-debug.apk GOGOGO! apk file! type is apk and filename is app-debug Archive: app-debug.apk replace classes.dex? [y]es, [n]o, [A]ll, [N]one, [r]ename: y inflating: classes.dex updating: classes.dex (deflated 69%) Success and output.apk generated. ➜ /tmp ./del-support.sh classes.dex GOGOGO! dex file! type is dex and filename is classes Success and out.dex generated. |
👍👍👍