diff --git a/src/errors.rs b/src/errors.rs
index 1cc8c07..2b29653 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -7,7 +7,7 @@ impl From<std::io::Error> for KakMessage {
     fn from(err: std::io::Error) -> Self {
         Self(
             "Error writing to fifo".to_string(),
-            Some(format!("{:?}", err)),
+            Some(format!("{}", err)),
         )
     }
 }
diff --git a/src/main.rs b/src/main.rs
index 1e6c890..e543e63 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,9 +1,10 @@
 #![warn(clippy::all, clippy::pedantic, clippy::nursery, clippy::cargo)]
-#![allow(dead_code, unused_imports)]
+// #![allow(dead_code, unused_imports)]
 
 mod errors;
 mod shuf;
 mod sort;
+mod uniq;
 use clap::{Parser, Subcommand};
 use errors::KakMessage;
 use shuf::ShufOptions;
@@ -14,6 +15,7 @@ use std::{
     io::Write,
     str::FromStr,
 };
+use uniq::UniqOptions;
 
 #[derive(Parser, Debug)]
 #[clap(about, version, author)]
@@ -31,6 +33,7 @@ struct Cli {
 enum Commands {
     Sort(SortOptions),
     Shuf(ShufOptions),
+    Uniq(UniqOptions),
 }
 
 #[derive(PartialEq, PartialOrd, Ord, Eq, Debug)]
@@ -103,10 +106,6 @@ impl SelectionDesc {
     }
 }
 
-// impl PartialOrd for SelectionDesc {
-//     fn cmp() {}
-// }
-
 fn main() {
     let msg = match run() {
         Ok(msg) => msg,
@@ -122,7 +121,7 @@ fn main() {
     };
 
     if let Err(e) = send_message(&msg) {
-        println!("{:?}", e);
+        println!("{}", e);
     }
 }
 
@@ -146,13 +145,14 @@ fn run() -> Result<KakMessage, KakMessage> {
     let options = Cli::try_parse().map_err(|e| {
         KakMessage(
             "Error parsing arguments".to_string(),
-            Some(format!("Could not parse: {:?}", e)),
+            Some(format!("Could not parse: {}", e)),
         )
     })?;
 
     match &options.command {
         Commands::Sort(sort_options) => sort::sort(sort_options),
         Commands::Shuf(shuf_options) => shuf::shuf(shuf_options),
+        Commands::Uniq(uniq_options) => uniq::uniq(uniq_options),
     }
 }
 
diff --git a/src/sort.rs b/src/sort.rs
index 5e8ea3b..82b901a 100644
--- a/src/sort.rs
+++ b/src/sort.rs
@@ -1,6 +1,5 @@
 use crate::{kak_response, open_command_fifo, KakMessage, SelectionDesc};
 use alphanumeric_sort::compare_str;
-use rand::{seq::SliceRandom, thread_rng};
 use regex::Regex;
 use std::{cmp::Ordering, io::Write, str::FromStr};
 
@@ -11,7 +10,7 @@ pub struct SortOptions {
     #[clap(short = 's', long)]
     subselections_register: Option<char>,
     // TODO: Can we invert a boolean? This name is terrible
-    #[clap(short = 'S', long)]
+    #[clap(short = 'S', long, parse(try_from_str = invert_bool), default_value_t)]
     no_skip_whitespace: bool,
     #[clap(short, long)]
     lexicographic_sort: bool,
@@ -21,6 +20,15 @@ pub struct SortOptions {
     ignore_case: bool,
 }
 
+fn invert_bool(s: &str) -> Result<bool, &'static str> {
+    // Invert the boolean
+    match s {
+        "false" => Ok(true),
+        "true" => Ok(false),
+        _ => Err("Unparsable boolean value"),
+    }
+}
+
 struct SortableSelection<'a> {
     /// The content of the selection
     content: &'a str,
@@ -58,9 +66,12 @@ fn get_sortable_selections_subselections<'a, 'b, 'tmp, S: AsRef<str> + std::fmt:
     let mut subselections = subselections
         .iter()
         .zip(subselections_desc.iter())
-        .map(|(s, sd)| Ok((s.as_ref(), SelectionDesc::from_str(sd.as_ref())?)))
+        // Bind selection with associated description
+        // Sort descriptions so left is always <= right
+        .map(|(s, sd)| Ok((s.as_ref(), SelectionDesc::from_str(sd.as_ref())?.sort())))
         .collect::<Result<Vec<(&str, SelectionDesc)>, KakMessage>>()?;
 
+    // Sort subselections by description
     subselections.sort_by(|(_, ssd_a), (_, ssd_b)| ssd_a.cmp(ssd_b));
 
     // For each selection, check if they contain any subselections
@@ -113,6 +124,8 @@ fn to_sortable_selection<'a, 'b>(
 }
 
 pub fn sort(sort_options: &SortOptions) -> Result<KakMessage, KakMessage> {
+    eprintln!("Got sort options: {:?}", sort_options);
+
     let subselections: Option<(Vec<String>, Vec<String>)> = sort_options
         .subselections_register
         .map::<Result<(Vec<String>, Vec<String>), KakMessage>, _>(|_c| {