diff --git a/crates/pacdef_core/src/args.rs b/crates/pacdef_core/src/args.rs
index 0c9c9e7..faefea8 100644
--- a/crates/pacdef_core/src/args.rs
+++ b/crates/pacdef_core/src/args.rs
@@ -1,7 +1,7 @@
 use std::path::PathBuf;
 
 use anyhow::{Context, Result};
-use clap::{Arg, ArgMatches, Command};
+use clap::{Arg, ArgAction, ArgMatches, Command};
 use path_absolutize::Absolutize;
 
 use crate::action::*;
@@ -100,16 +100,22 @@ fn get_group_cmd() -> Command {
 fn get_package_cmd() -> Command {
     let sync = Command::new(SYNC)
         .about("install packages from all imported groups")
-        .visible_alias("sy");
+        .visible_alias("sy")
+        .arg(build_noconfirm_arg());
+
     let clean = Command::new(CLEAN)
         .about("remove unmanaged packages")
-        .visible_alias("c");
+        .visible_alias("c")
+        .arg(build_noconfirm_arg());
+
     let unmanaged = Command::new(UNMANAGED)
         .about("show explicitly installed packages not managed by pacdef")
         .visible_alias("u");
+
     let review = Command::new(REVIEW)
         .about("review unmanaged packages")
         .visible_alias("r");
+
     let search = Command::new(SEARCH)
         .visible_alias("se")
         .about("search for packages which match a provided regex")
@@ -128,6 +134,13 @@ fn get_package_cmd() -> Command {
         .subcommands([clean, review, unmanaged, search, sync])
 }
 
+fn build_noconfirm_arg() -> Arg {
+    Arg::new("noconfirm")
+        .long("noconfirm")
+        .help("do not ask for any confirmation")
+        .action(ArgAction::SetTrue)
+}
+
 /// Get and parse the CLI arguments.
 #[must_use]
 pub fn get() -> clap::ArgMatches {
diff --git a/crates/pacdef_core/src/backend/actual/arch.rs b/crates/pacdef_core/src/backend/actual/arch.rs
index 4c0757a..e77afd6 100644
--- a/crates/pacdef_core/src/backend/actual/arch.rs
+++ b/crates/pacdef_core/src/backend/actual/arch.rs
@@ -21,6 +21,7 @@ const SECTION: Text = "arch";
 const SWITCHES_INFO: Switches = &["--query", "--info"];
 const SWITCHES_INSTALL: Switches = &["--sync"];
 const SWITCHES_MAKE_DEPENDENCY: Switches = &["--database", "--asdeps"];
+const SWITCHES_NOCONFIRM: Switches = &["--noconfirm"];
 const SWITCHES_REMOVE: Switches = &["--remove", "--recursive"];
 
 const SUPPORTS_AS_DEPENDENCY: bool = true;
@@ -49,11 +50,15 @@ impl Backend for Arch {
     }
 
     /// Install the specified packages.
-    fn install_packages(&self, packages: &[Package]) -> Result<ExitStatus> {
+    fn install_packages(&self, packages: &[Package], noconfirm: bool) -> Result<ExitStatus> {
         let mut cmd = Command::new(&self.binary);
 
         cmd.args(self.get_switches_install());
 
+        if noconfirm {
+            cmd.args(self.get_switches_noconfirm());
+        }
+
         for p in packages {
             cmd.arg(format!("{p}"));
         }
@@ -63,7 +68,7 @@ impl Backend for Arch {
     }
 
     /// Remove the specified packages.
-    fn remove_packages(&self, packages: &[Package]) -> Result<ExitStatus> {
+    fn remove_packages(&self, packages: &[Package], noconfirm: bool) -> Result<ExitStatus> {
         let mut cmd = Command::new(&self.binary);
 
         cmd.args(self.get_switches_remove());
@@ -71,6 +76,10 @@ impl Backend for Arch {
             cmd.args(rm_args);
         }
 
+        if noconfirm {
+            cmd.args(self.get_switches_noconfirm());
+        }
+
         for p in packages {
             cmd.arg(format!("{p}"));
         }
diff --git a/crates/pacdef_core/src/backend/actual/debian.rs b/crates/pacdef_core/src/backend/actual/debian.rs
index 19c45cc..d62824f 100644
--- a/crates/pacdef_core/src/backend/actual/debian.rs
+++ b/crates/pacdef_core/src/backend/actual/debian.rs
@@ -20,6 +20,7 @@ const SECTION: Text = "debian";
 const SWITCHES_INFO: Switches = &["show"];
 const SWITCHES_INSTALL: Switches = &["install"];
 const SWITCHES_MAKE_DEPENDENCY: Switches = &[]; // not needed
+const SWITCHES_NOCONFIRM: Switches = &["--yes"];
 const SWITCHES_REMOVE: Switches = &["remove"];
 
 const SUPPORTS_AS_DEPENDENCY: bool = true;
diff --git a/crates/pacdef_core/src/backend/actual/python.rs b/crates/pacdef_core/src/backend/actual/python.rs
index b6def6c..2472514 100644
--- a/crates/pacdef_core/src/backend/actual/python.rs
+++ b/crates/pacdef_core/src/backend/actual/python.rs
@@ -20,6 +20,7 @@ const SECTION: Text = "python";
 const SWITCHES_INFO: Switches = &["show"];
 const SWITCHES_INSTALL: Switches = &["install"];
 const SWITCHES_MAKE_DEPENDENCY: Switches = &[]; // not needed
+const SWITCHES_NOCONFIRM: Switches = &[]; // not needed
 const SWITCHES_REMOVE: Switches = &["uninstall"];
 
 const SUPPORTS_AS_DEPENDENCY: bool = false;
diff --git a/crates/pacdef_core/src/backend/actual/rust.rs b/crates/pacdef_core/src/backend/actual/rust.rs
index a95a9c6..1ffc656 100644
--- a/crates/pacdef_core/src/backend/actual/rust.rs
+++ b/crates/pacdef_core/src/backend/actual/rust.rs
@@ -20,6 +20,7 @@ const SECTION: Text = "rust";
 const SWITCHES_INSTALL: Switches = &["install"];
 const SWITCHES_INFO: Switches = &["search", "--limit", "1"];
 const SWITCHES_MAKE_DEPENDENCY: Switches = &[];
+const SWITCHES_NOCONFIRM: Switches = &[]; // not needed
 const SWITCHES_REMOVE: Switches = &["uninstall"];
 
 const SUPPORTS_AS_DEPENDENCY: bool = false;
diff --git a/crates/pacdef_core/src/backend/backend_trait.rs b/crates/pacdef_core/src/backend/backend_trait.rs
index 1ff7711..8e6be52 100644
--- a/crates/pacdef_core/src/backend/backend_trait.rs
+++ b/crates/pacdef_core/src/backend/backend_trait.rs
@@ -37,6 +37,10 @@ pub trait Backend: Debug {
     /// Get CLI switches for the package manager to install packages.
     fn get_switches_install(&self) -> Switches;
 
+    /// Get CLI switches for the package manager to perform `sync` and `clean` without
+    /// confirmation.
+    fn get_switches_noconfirm(&self) -> Switches;
+
     /// Get CLI switches for the package manager to remove packages.
     fn get_switches_remove(&self) -> Switches;
 
@@ -73,12 +77,18 @@ pub trait Backend: Debug {
     }
 
     /// Install the specified packages.
-    fn install_packages(&self, packages: &[Package]) -> Result<ExitStatus> {
+    fn install_packages(&self, packages: &[Package], noconfirm: bool) -> Result<ExitStatus> {
         let mut cmd = Command::new(self.get_binary());
         cmd.args(self.get_switches_install());
+
+        if noconfirm {
+            cmd.args(self.get_switches_noconfirm());
+        }
+
         for p in packages {
             cmd.arg(format!("{p}"));
         }
+
         cmd.status()
             .with_context(|| format!("running command {cmd:?}"))
     }
@@ -92,20 +102,28 @@ pub trait Backend: Debug {
     fn make_dependency(&self, packages: &[Package]) -> Result<ExitStatus> {
         let mut cmd = Command::new(self.get_binary());
         cmd.args(self.get_switches_make_dependency());
+
         for p in packages {
             cmd.arg(format!("{p}"));
         }
+
         cmd.status()
             .with_context(|| format!("running command [{cmd:?}]"))
     }
 
     /// Remove the specified packages.
-    fn remove_packages(&self, packages: &[Package]) -> Result<ExitStatus> {
+    fn remove_packages(&self, packages: &[Package], noconfirm: bool) -> Result<ExitStatus> {
         let mut cmd = Command::new(self.get_binary());
         cmd.args(self.get_switches_remove());
+
+        if noconfirm {
+            cmd.args(self.get_switches_noconfirm());
+        }
+
         for p in packages {
             cmd.arg(format!("{p}"));
         }
+
         cmd.status()
             .with_context(|| format!("running command [{cmd:?}]"))
     }
diff --git a/crates/pacdef_core/src/backend/macros.rs b/crates/pacdef_core/src/backend/macros.rs
index 5051519..c8bf2ca 100644
--- a/crates/pacdef_core/src/backend/macros.rs
+++ b/crates/pacdef_core/src/backend/macros.rs
@@ -19,6 +19,10 @@ macro_rules! impl_backend_constants {
             SWITCHES_INSTALL
         }
 
+        fn get_switches_noconfirm(&self) -> Switches {
+            SWITCHES_NOCONFIRM
+        }
+
         fn get_switches_remove(&self) -> Switches {
             SWITCHES_REMOVE
         }
diff --git a/crates/pacdef_core/src/backend/todo_per_backend.rs b/crates/pacdef_core/src/backend/todo_per_backend.rs
index 2809a28..88ea796 100644
--- a/crates/pacdef_core/src/backend/todo_per_backend.rs
+++ b/crates/pacdef_core/src/backend/todo_per_backend.rs
@@ -35,31 +35,37 @@ impl ToDoPerBackend {
         self.0.iter().all(|(_, diff)| diff.is_empty())
     }
 
-    pub(crate) fn install_missing_packages(&self) -> Result<()> {
-        self.handle_backend_command(Backend::install_packages, "install", "installing")
-            .context("installing packages")
+    pub(crate) fn install_missing_packages(&self, noconfirm: bool) -> Result<()> {
+        self.handle_backend_command(
+            Backend::install_packages,
+            noconfirm,
+            "install",
+            "installing",
+        )
+        .context("installing packages")
     }
 
-    pub(crate) fn remove_unmanaged_packages(&self) -> Result<()> {
-        self.handle_backend_command(Backend::remove_packages, "remove", "removing")
+    pub(crate) fn remove_unmanaged_packages(&self, noconfirm: bool) -> Result<()> {
+        self.handle_backend_command(Backend::remove_packages, noconfirm, "remove", "removing")
             .context("removing packages")
     }
 
     fn handle_backend_command<'a, F>(
         &'a self,
         func: F,
+        noconfirm: bool,
         verb: &'_ str,
         verb_continuous: &'_ str,
     ) -> Result<()>
     where
-        F: Fn(&'a dyn Backend, &'a [Package]) -> Result<ExitStatus>,
+        F: Fn(&'a dyn Backend, &'a [Package], bool) -> Result<ExitStatus>,
     {
         for (backend, packages) in &self.0 {
             if packages.is_empty() {
                 continue;
             }
 
-            let exit_status = func(&**backend, packages).with_context(|| {
+            let exit_status = func(&**backend, packages, noconfirm).with_context(|| {
                 format!("{verb_continuous} packages for {}", backend.get_section())
             })?;
 
diff --git a/crates/pacdef_core/src/core.rs b/crates/pacdef_core/src/core.rs
index 2528e27..7a1cb67 100644
--- a/crates/pacdef_core/src/core.rs
+++ b/crates/pacdef_core/src/core.rs
@@ -71,13 +71,13 @@ impl Pacdef {
             },
 
             Some(("package", args)) => match args.subcommand() {
-                Some((CLEAN, _)) => self.clean_packages(),
+                Some((CLEAN, args)) => self.clean_packages(&args.clone()),
                 Some((REVIEW, _)) => review::review(self.get_unmanaged_packages()?, self.groups)
                     .context("review unmanaged packages"),
                 Some((SEARCH, args)) => {
                     search::search_packages(args, &self.groups).context("searching packages")
                 }
-                Some((SYNC, _)) => self.install_packages(),
+                Some((SYNC, args)) => self.install_packages(&args.clone()), // TODO fix cloning
                 Some((UNMANAGED, _)) => self.show_unmanaged_packages(),
 
                 Some((_, _)) => panic!("{ACTION_NOT_MATCHED}"),
@@ -130,7 +130,7 @@ impl Pacdef {
         }
     }
 
-    fn install_packages(&mut self) -> Result<()> {
+    fn install_packages(&mut self, args: &ArgMatches) -> Result<()> {
         let to_install = self.get_missing_packages()?;
 
         if to_install.nothing_to_do_for_all_backends() {
@@ -141,12 +141,18 @@ impl Pacdef {
         println!("Would install the following packages:\n");
         to_install.show().context("printing things to do")?;
 
-        println!();
-        if !get_user_confirmation()? {
-            return Ok(());
-        };
+        let noconfirm = *args
+            .get_one::<bool>("noconfirm")
+            .expect("has a default value");
 
-        to_install.install_missing_packages()
+        println!();
+        if noconfirm {
+            println!("proceeding without confirmation");
+        } else if !get_user_confirmation()? {
+            return Ok(());
+        }
+
+        to_install.install_missing_packages(noconfirm)
     }
 
     fn edit_group_files(&self, arg_matches: &ArgMatches) -> Result<()> {
@@ -220,7 +226,7 @@ impl Pacdef {
         }
     }
 
-    fn clean_packages(mut self) -> Result<()> {
+    fn clean_packages(&mut self, args: &ArgMatches) -> Result<()> {
         let to_remove = self.get_unmanaged_packages()?;
 
         if to_remove.nothing_to_do_for_all_backends() {
@@ -231,12 +237,18 @@ impl Pacdef {
         println!("Would remove the following packages:\n");
         to_remove.show().context("printing things to do")?;
 
-        println!();
-        if !get_user_confirmation()? {
-            return Ok(());
-        };
+        let noconfirm = *args
+            .get_one::<bool>("noconfirm")
+            .expect("has a default value");
 
-        to_remove.remove_unmanaged_packages()
+        println!();
+        if noconfirm {
+            println!("proceeding without confirmation");
+        } else if !get_user_confirmation()? {
+            return Ok(());
+        }
+
+        to_remove.remove_unmanaged_packages(noconfirm)
     }
 
     fn show_group_content(&self, groups: &ArgMatches) -> Result<()> {
diff --git a/crates/pacdef_core/src/review/strategy.rs b/crates/pacdef_core/src/review/strategy.rs
index 395c9ed..4ae69ad 100644
--- a/crates/pacdef_core/src/review/strategy.rs
+++ b/crates/pacdef_core/src/review/strategy.rs
@@ -30,7 +30,7 @@ impl Strategy {
 
     pub(super) fn execute(self) -> Result<()> {
         if !self.delete.is_empty() {
-            ensure!(self.backend.remove_packages(&self.delete)?.success());
+            ensure!(self.backend.remove_packages(&self.delete, false)?.success());
         }
 
         if !self.as_dependency.is_empty() {