atopsar -r cpu_usage_read_0612_1522.txt | atopplot atopplot: command not found
时间: 2024-03-27 07:39:26 浏览: 26
如果您在运行`atopsar -r cpu_usage_read_0612_1522.txt | atopplot`命令时出现了`atopplot: command not found`的错误提示,可能是因为您的系统上没有安装atopplot工具。
请根据您的系统类型和版本,使用适当的包管理器安装atopplot工具。例如,在Ubuntu系统上,您可以使用以下命令安装atopplot:
```
sudo apt-get update
sudo apt-get install atop
```
在CentOS系统上,您可以使用以下命令安装atopplot:
```
sudo yum install epel-release
sudo yum install atop
```
安装完成后,再次运行`atopsar -r cpu_usage_read_0612_1522.txt | atopplot`命令即可生成atopplot图表。
相关问题
ubuntu上atopsar -r cpu_usage_read_0612_1522.txt | atopplot atopplot: command not found
如果在Ubuntu上出现`atopplot: command not found`错误,可能是因为atopplot没有被正确安装或者安装位置没有在系统路径中。
您可以尝试使用以下命令安装atopplot:
```
sudo apt-get update
sudo apt-get install atop
```
如果atop已经安装,但仍然无法找到atopplot命令,您可以尝试使用以下命令查找该命令的位置:
```
sudo find / -name atopplot
```
如果atopplot命令的位置已经被找到,您可以将其添加到系统路径中,例如:
```
export PATH=$PATH:/usr/share/atop
```
这将在当前终端会话中将atopplot命令添加到系统路径中。如果您希望永久性地添加该命令,可以将上述命令添加到`~/.bashrc`文件中。
通过上述方法,您应该可以解决Ubuntu上无法找到atopplot命令的问题。
(Remove text) Write a program that removes all the occurrences of a specified string from a text file. For example, invoking java Exercise12_11 John filename removes the string John from the specified file. Your program should get the arguments from the command line.
Sure, I can help you with that! Here's a Java program that takes in two command line arguments - the string to be removed and the name of the file - and removes all occurrences of the specified string from the text file:
```java
import java.io.*;
public class RemoveStringFromFile {
public static void main(String[] args) {
if (args.length != 2) {
System.out.println("Usage: java RemoveStringFromFile <string-to-remove> <file-name>");
System.exit(1);
}
String strToRemove = args[0];
String fileName = args[1];
try {
BufferedReader reader = new BufferedReader(new FileReader(fileName));
StringBuffer sb = new StringBuffer();
String line;
while ((line = reader.readLine()) != null) {
line = line.replaceAll(strToRemove, "");
sb.append(line + "\n");
}
reader.close();
BufferedWriter writer = new BufferedWriter(new FileWriter(fileName));
writer.write(sb.toString());
writer.close();
System.out.println("Successfully removed all occurrences of " + strToRemove + " from " + fileName);
} catch (FileNotFoundException ex) {
System.out.println("File not found: " + fileName);
} catch (IOException ex) {
System.out.println("Error reading/writing file: " + ex.getMessage());
}
}
}
```
You can compile this program using `javac RemoveStringFromFile.java` and run it using `java RemoveStringFromFile <string-to-remove> <file-name>`. For example, if you want to remove all occurrences of the string "John" from a file called "input.txt", you can run the program like this: `java RemoveStringFromFile John input.txt`. The program will read in the contents of the file, remove all occurrences of "John", and write the modified contents back to the same file.
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