diff --git a/README.md b/README.md
index 91e91d1..6514414 100644
--- a/README.md
+++ b/README.md
@@ -93,7 +93,9 @@ Commands:
   help     Print this message or the help of the given subcommand(s)
 
 Options:
-  -h, --help  Print help information
+  -q, --quiet    Operates quietly. Errors will be reported even if this option is enabled
+  -v, --verbose  Operates verbosely. Traces, debug logs will be reported
+  -h, --help     Print help
 ```
 
 ### Cloning a repository
diff --git a/src/cmd/mod.rs b/src/cmd/mod.rs
index 06b1d47..11820cb 100644
--- a/src/cmd/mod.rs
+++ b/src/cmd/mod.rs
@@ -10,8 +10,12 @@ mod profile;
 mod shell;
 mod version;
 
+use std::io::stderr;
+
 use anyhow::Result;
 use clap::{Parser, Subcommand};
+use tracing_subscriber::filter::LevelFilter;
+use tracing_subscriber::EnvFilter;
 
 #[derive(Debug, Subcommand)]
 pub enum Action {
@@ -43,10 +47,34 @@ pub enum Action {
 pub struct Cli {
     #[clap(subcommand)]
     action: Action,
+
+    /// Operates quietly. Errors will be reported even if this option is enabled.
+    #[clap(short, long, global = true)]
+    quiet: bool,
+
+    /// Operates verbosely. Traces, debug logs will be reported.
+    #[clap(short, long, global = true)]
+    verbose: bool,
 }
 
 impl Cli {
     pub async fn run(self) -> Result<()> {
+        tracing_subscriber::fmt()
+            .compact()
+            .without_time()
+            .with_target(false)
+            .with_env_filter(
+                EnvFilter::builder()
+                    .with_default_directive(match (self.quiet, self.verbose) {
+                        (true, _) => LevelFilter::ERROR.into(),
+                        (_, true) => LevelFilter::TRACE.into(),
+                        _ => LevelFilter::INFO.into(),
+                    })
+                    .from_env_lossy(),
+            )
+            .with_writer(stderr)
+            .init();
+
         use Action::*;
         match self.action {
             Cd(cmd) => cmd.run(),
diff --git a/src/main.rs b/src/main.rs
index 96dd30a..5d7e264 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,13 +11,10 @@ mod root;
 mod rule;
 mod url;
 
-use std::io::stderr;
 use std::process::exit;
 
 use clap::Parser;
 use tracing::error;
-use tracing_subscriber::filter::LevelFilter;
-use tracing_subscriber::EnvFilter;
 
 use crate::cmd::Cli;
 
@@ -31,18 +28,6 @@ const BUILD_INFO: &str = build_info::format!(
 
 #[tokio::main]
 async fn main() {
-    tracing_subscriber::fmt()
-        .compact()
-        .without_time()
-        .with_target(false)
-        .with_env_filter(
-            EnvFilter::builder()
-                .with_default_directive(LevelFilter::INFO.into())
-                .from_env_lossy(),
-        )
-        .with_writer(stderr)
-        .init();
-
     if let Err(e) = Cli::parse().run().await {
         error!("{}", e);
         exit(1);