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- system(“cd <path>”) in a C program 3 answers
系统(“cd
When I run my code, it refuses to do its work inside of my home directory, but instead from where the application is located.
当我运行我的代码时,它拒绝在我的主目录中进行工作,而是从应用程序所在的位置开始。
system("cd ~");
system("curl https://www.dropbox.com/s/5zbfuog50rlztil/Archive.zip > tmp.zip");
system("unzip tmp.zip");
The file isn't put in the right location so the remainder of the program will not execute properly.
该文件未放在正确的位置,因此程序的其余部分将无法正常执行。
2 个解决方案
#1
3
system() starts a shell to perform the command, then leaves the shell.
system()启动一个shell来执行命令,然后离开shell。
So the cd is performed and as the shell ends it is forgotten.
因此执行cd并且当shell结束时它被遗忘。
So to solve your specific issue:
所以要解决你的具体问题:
Place all three commands in one script and execute it with one call to system().
将所有三个命令放在一个脚本中,并通过一次调用system()来执行它。
#2
0
You can also do the following
您还可以执行以下操作
system("curl https://www.dropbox.com/s/5zbfuog50rlztil/Archive.zip > $HOME/tmp.zip");
system("unzip $HOME/tmp.zip -d $HOME/");
BTW, you should check for errors
顺便说一句,你应该检查错误
#1
3
system() starts a shell to perform the command, then leaves the shell.
system()启动一个shell来执行命令,然后离开shell。
So the cd is performed and as the shell ends it is forgotten.
因此执行cd并且当shell结束时它被遗忘。
So to solve your specific issue:
所以要解决你的具体问题:
Place all three commands in one script and execute it with one call to system().
将所有三个命令放在一个脚本中,并通过一次调用system()来执行它。
#2
0
You can also do the following
您还可以执行以下操作
system("curl https://www.dropbox.com/s/5zbfuog50rlztil/Archive.zip > $HOME/tmp.zip");
system("unzip $HOME/tmp.zip -d $HOME/");
BTW, you should check for errors
顺便说一句,你应该检查错误