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package main
import (
"bufio"
"bytes"
"os/exec"
"strings"
)
func listInstalledPackages() ([]string, error) {
// Execute dpkg -l command
cmd := exec.Command("dpkg", "-l")
var out bytes.Buffer
cmd.Stdout = &out
if err := cmd.Run(); err != nil {
return nil, err
}
// Initialize slice to hold package names
var packages []string
scanner := bufio.NewScanner(&out)
// Skip the first five lines as they are headers in dpkg -l output
for i := 0; i < 5 && scanner.Scan(); i++ {
// Ignore header lines
}
// Process each remaining line
for scanner.Scan() {
line := scanner.Text()
fields := strings.Fields(line)
// Ensure the line has enough fields for parsing
if len(fields) >= 2 {
status := fields[0]
packageName := fields[1]
// Only add packages with "ii" status (installed)
if status == "ii" {
packages = append(packages, packageName)
}
}
}
if err := scanner.Err(); err != nil {
return nil, err
}
return packages, nil
}
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