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1¡¢Äܹ»ÏÔʾ³öMakefileµÄ×ÜÊý
2¡¢ÄÜÏÔʾһ¼¶Ä¿Â¼ÏµÄMakefile×ÜÊý¡¢MakefileÁÐ±í¼°ÆäMakefileµÄÄÚÈÝ
3¡¢Äܽ«ÉÏÊöÄÚÈÝдÈëÏàÓ¦µÄÎļþ
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rm -rf ~/Desktop/linux_Makefile/*
for i in `find . -maxdepth 1 -type d`
#½ö½öÊǵ±Ç°Ä¿Â¼£¬ËùÒÔÇ뽫±¾½Å±¾·ÅÔÚlinuxÔ´ÂëĿ¼ÏÂÖ´ÐС£
do
 echo $i
 mkdir -p ~/Desktop/linux_Makefile/$i
 find $i -type f -name "Makefile" -print | echo -e ""$i" Total is:`wc -l`" >> ~/Desktop/linux_Makefile/total_Makefile_list_about.txt
#
MakefileµÄ×ÜÊý
 find $i -type f -name "Makefile" -print | echo -e "\n"$i"'s Makefile Total number is:`wc -l`\n" > ~/Desktop/linux_Makefile/$i/"$i"_Makefile_list.txt
 find $i -type f -name "Makefile" -print >> ~/Desktop/linux_Makefile/$i/"$i"_Makefile_list.txt
 find $i -type f -name "Makefile" -printf "\n# ============================================================\n# " -print -printf "# ============================================================\n\n" -exec cat {} \; >> ~/Desktop/linux_Makefile/$i/"$i"_Makefile_content.txt
done
mv ~/Desktop/linux_Makefile/._Makefile_content.txt ~/Desktop/linux_Makefile/total_Makefile_content.txt
mv ~/Desktop/linux_Makefile/._Makefile_list.txt ~/Desktop/linux_Makefile/total_Makefile_list.txt
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#include <stdio.h>
#include <unistd.h>
#define FOO "foo"
int main(void)
{
if(!access(FOO, F_OK))
{
if(!unlink(FOO))
{

}
else
{
printf("remove %s failed\n", FOO);
}
}
else
{
printf("%s not existed\ ......

linuxϵͳÏÂrpm°üµÄ°²×°¡¢É¾³ý¡¢Ð§Ñé¡¢²éѯ

 µãÆÀ£º°²×°Èí¼þ°ü rpm  -i °üÈ«Ãû ɾ³ý rpm -e name(²»ÊǰüÃû) ²ÎÊý -ivh »ñµÃÒ»¸öÏêϸµÄ°²×°½ø³Ì --nodeps ºöÂÔÒÀÀµ¹ØÏµ --force Ç¿ÖÆ°²×° -U °üÃû:Éý¼¶°²×° -F ¸üв»¹ÜÊÇʲôֱ½Ó¸²¸Ç --replacepkgsÕâÑù RPM ½«ºöÂԸôíÎóÐÅÏ¢ -vih --repla
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