在 Linux 终端中执行 C 程序
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Executing C program in Linux Terminal
提问by Rafi Kamal
I have compiled a program from my Ububtu 10.10 terminal by
我已经从我的 Ububtu 10.10 终端编译了一个程序
gcc file_name.c -o new_file
gcc file_name.c -o new_file
command. It compiled successfully creating an executable file named new_file. But when I was trying to execute it by this command
命令。它编译成功，创建了一个名为 new_file 的可执行文件。但是当我试图通过这个命令执行它时
./new_file
It says that permission is denied of new_file. I've checked the permission properties of that file found that I've permission to read & write it (I'm the only user of that system). Can you please help me to figure out the problem?
它说 new_file 的权限被拒绝。我检查了该文件的权限属性，发现我有权读写它（我是该系统的唯一用户）。你能帮我找出问题所在吗？
采纳答案by DonCallisto
You have to give it exe. permissions.
你必须给它exe。权限。
So: chmod +x new_file
所以： chmod +x new_file
When you create a new file with your gcc, by default, this isn't executable. So, you have to gave it permissions of execution.
当您使用 gcc 创建新文件时，默认情况下，这是不可执行的。所以，你必须给它执行权限。
With chmod(see this)you change permissions on file.
使用chmod(see this)您可以更改文件的权限。
In that specific case, you gave execution permissions ( + [plus] means gave, 'x' means execution ) to that file.
在这种特定情况下，您授予了该文件的执行权限（ + [plus] 表示给予，'x' 表示执行）。
If you want to revoke that permission, you can type: chmod -x filename
如果要撤销该权限，可以键入： chmod -x filename
回答by Prabhavith
After compiling, the file is placed in a.outTry to use a.out.
编译后，文件放在a.outTry to use 中a.out。
