diff --git a/Cargo.toml b/Cargo.toml
index 9b04141..c1e127b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ path = "journal_cli/src/main.rs"
 journal = { path = "./journal" }
 chrono = { version = "0.4.38", features = ["serde"] }
 chrono-tz = { version = "0.10.0", features = ["serde"] }
-clap = { version = "4.5.21", features = ["derive"] }
+clap = { version = "4.5.21", features = ["derive", "env"] }
 log = { version = "0.4.22", features = ["std", "serde"] }
 prettytable-rs = "0.10.0"
 serde = { version = "1.0.215", features = ["std", "derive", "serde_derive"] }
diff --git a/journal/src/helpers.rs b/journal/src/helpers.rs
index 61c0078..7feec84 100644
--- a/journal/src/helpers.rs
+++ b/journal/src/helpers.rs
@@ -75,6 +75,7 @@ pub fn ingestion_standard_deviation(
 			.expect("Custom Unit could not be found");
 
 		if custom_unit.estimate_standard_deviation.is_none() {
+      println!("{:?}", ingestion.estimate_standard_deviation);
 			return ingestion.estimate_standard_deviation;
 		};
 
@@ -93,19 +94,17 @@ pub fn ingestion_standard_deviation(
 	}
 }
 
-// def ingestionStandardDeviation($customUnits):
-//   . as $ingestion |
-//   journalTypes::ensureIngestion |
+pub fn ingestion_unit(
+	ingestion: &Ingestion,
+	custom_units: &CustomUnitsType,
+) -> String {
+  if let Some(custom_unit_id) = ingestion.custom_unit_id {
+			let custom_unit = custom_units
+				.get_by_id(custom_unit_id)
+				.expect("Custom Unit could not be found");
 
-//   if .customUnitId != null then
-//     ($customUnits | map(select(.id == $ingestion.customUnitId))[0]) as $customUnit |
-
-//     ($ingestion.dose // 0) as $expectationX |
-//     ($ingestion.estimatedDoseStandardDeviation // 0) as $standardDeviationX |
-//     ($customUnit.dose // 0) as $expectationY |
-//     ($customUnit.estimatedDoseStandardDeviation // 0) as $standardDeviationY |
-
-//     addStandardDeviations($expectationX; $standardDeviationX; $expectationY; $standardDeviationY)
-//   else
-//     .estimatedDoseStandardDeviation
-//   end;
+		custom_unit.original_unit.clone()
+	} else {
+		ingestion.unit.clone()
+	}
+}
\ No newline at end of file
diff --git a/journal/src/types.rs b/journal/src/types.rs
index fe67227..4f3e351 100644
--- a/journal/src/types.rs
+++ b/journal/src/types.rs
@@ -35,11 +35,12 @@ pub struct Ingestion {
 	#[serde(with = "ts_milliseconds", rename = "creationDate")]
 	pub creation_time: DateTime<Utc>,
 	pub dose: Option<f64>,
+	#[serde(rename = "units")]
+	pub unit: String,
 	#[serde(rename = "isDoseAnEstimate")]
 	pub is_estimate: bool,
 	#[serde(rename = "estimatedDoseStandardDeviation")]
 	pub estimate_standard_deviation: Option<f64>,
-	pub units: String,
 	pub custom_unit_id: Option<i64>,
 	#[serde(rename = "administrationRoute")]
 	pub roa: AdministrationRoute,
@@ -70,15 +71,15 @@ pub struct Experience {
 pub type ExperiencesType = Vec<Experience>;
 
 pub trait Experiences {
-	fn filter_by_title(&self, title: String) -> Vec<Experience>;
-	fn get_by_title(&self, title: String) -> Option<Experience>;
+	fn filter_by_title(&self, title: &String) -> Vec<Experience>;
+	fn get_by_title(&self, title: &String) -> Option<Experience>;
 }
 
 impl Experiences for ExperiencesType {
-	fn filter_by_title(&self, title: String) -> Vec<Experience> {
+	fn filter_by_title(&self, title: &String) -> Vec<Experience> {
 		self.iter()
 			.filter_map(|experience| {
-				if experience.title == title {
+				if &experience.title == title {
 					Some(experience.clone())
 				} else {
 					None
@@ -86,9 +87,9 @@ impl Experiences for ExperiencesType {
 			})
 			.collect()
 	}
-	fn get_by_title(&self, title: String) -> Option<Experience> {
+	fn get_by_title(&self, title: &String) -> Option<Experience> {
 		for experience in self.iter() {
-			if experience.title == title {
+			if &experience.title == title {
 				return Some(experience.clone());
 			}
 		}
diff --git a/journal_cli/src/args.rs b/journal_cli/src/args.rs
index ee55f9f..c45f5b6 100644
--- a/journal_cli/src/args.rs
+++ b/journal_cli/src/args.rs
@@ -1,9 +1,14 @@
-use clap::Parser;
+use clap::{Parser, Subcommand};
+
+#[derive(Debug, Clone, Subcommand)]   
+#[clap(rename_all = "camelCase")]                                          
+pub enum Commands {
+  PrintExperience(crate::commands::print_experience::PrintExperienceArgs)
+}
 
 #[derive(Debug, Parser)]
 #[clap()]
 pub struct Args {
-  pub export_file: String,
-	// #[clap(subcommand)]
-	// pub command: Commands,
-}
+	#[clap(subcommand)]
+	pub command: Commands,
+}
\ No newline at end of file
diff --git a/journal_cli/src/commands/mod.rs b/journal_cli/src/commands/mod.rs
new file mode 100644
index 0000000..899875e
--- /dev/null
+++ b/journal_cli/src/commands/mod.rs
@@ -0,0 +1 @@
+pub mod print_experience;
\ No newline at end of file
diff --git a/journal_cli/src/commands/print_experience.rs b/journal_cli/src/commands/print_experience.rs
new file mode 100644
index 0000000..9609c49
--- /dev/null
+++ b/journal_cli/src/commands/print_experience.rs
@@ -0,0 +1,51 @@
+use crate::args::Args;
+use crate::utils::load_export_data;
+
+use journal;
+use journal::helpers::{
+	ingestion_contains_estimate, ingestion_dose, ingestion_standard_deviation, ingestion_unit,
+};
+use journal::types::Experiences;
+
+#[derive(Debug, Clone, clap::Args)]                                             
+pub struct PrintExperienceArgs {
+  pub experience_title: String,
+  #[clap(long, env = "EXPORT_FILE")]
+  pub export_file: String,
+}
+
+pub fn print_experience(_global_args: &Args, args: &PrintExperienceArgs) -> Result<(), Box<dyn std::error::Error>> {
+  let export_data = load_export_data(&args.export_file).expect("could not load export data");
+
+	let experience = export_data
+		.experiences
+		.get_by_title(&args.experience_title)
+		.expect("could not find experience");
+
+	for ingestion in experience.ingestions.iter() {
+        let contains_estimate = ingestion_contains_estimate(ingestion, &export_data.custom_units);
+        let standard_deviation = ingestion_standard_deviation(ingestion, &export_data.custom_units);
+		println!(
+			"{}: {}{}{}{}",
+			ingestion.substance_name,
+            if contains_estimate { "~" } else { "" },
+			format!(
+				"{:.2}",
+				ingestion_dose(ingestion, &export_data.custom_units).unwrap()
+			)
+			.trim_end_matches(".00"),
+			if standard_deviation.is_some() {
+				format!(
+					"±{:.2}",
+					standard_deviation.unwrap()
+				)
+			} else {
+				"".to_string()
+			}
+			.trim_end_matches(".00"),
+			ingestion_unit(ingestion, &export_data.custom_units),
+		)
+	}
+
+  Ok(())
+}
\ No newline at end of file
diff --git a/journal_cli/src/main.rs b/journal_cli/src/main.rs
index 76711f8..a2fa8a4 100644
--- a/journal_cli/src/main.rs
+++ b/journal_cli/src/main.rs
@@ -1,49 +1,21 @@
-use journal;
-use journal::helpers::{ingestion_contains_estimate, ingestion_dose, ingestion_standard_deviation};
-use journal::types::Experiences;
-use serde_json;
-use std::fs::File;
-
 use clap::Parser;
+use commands::print_experience::print_experience;
 
-mod args;
+pub mod args;
+pub mod commands;
+pub mod utils;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
 	let args = args::Args::parse();
 
-	let file = File::open(args.export_file)?;
+    let command = args.command.to_owned(); 
 
-	let mut export_data: journal::types::ExportData = serde_json::from_reader(file)?;
+    //println!("{:#?}", args);
 
-	export_data
-		.experiences
-		.sort_by(|a, b| a.modified_time.cmp(&b.modified_time));
-
-	for experience in export_data.experiences.iter_mut() {
-		experience
-			.ingestions
-			.sort_by(|a, b| a.ingestion_time.cmp(&b.ingestion_time));
-	}
-
-	let experience = export_data
-		.experiences
-		.get_by_title("20 Apr 2024".to_string())
-		.unwrap();
-
-	println!("{:#?}", experience);
-
-	for ingestion in experience.ingestions.iter() {
-		println!(
-			"{}: {}{}",
-			ingestion.substance_name,
-			format!("{:.2}", ingestion_dose(ingestion, &export_data.custom_units).unwrap()).trim_end_matches(".00"),
-			if ingestion_contains_estimate(ingestion, &export_data.custom_units) {
-                format!("±{:.2}", ingestion_standard_deviation(ingestion, &export_data.custom_units).or(Some(0.0)).unwrap())
-            } else {
-                "".to_string()
-            }.trim_end_matches(".00")
-		)
-	}
+    match command {
+        args::Commands::PrintExperience(print_experience_args) => 
+            print_experience(&args, &print_experience_args)?,
+    }
 
 	Ok(())
 }
diff --git a/journal_cli/src/utils.rs b/journal_cli/src/utils.rs
new file mode 100644
index 0000000..fda5d4c
--- /dev/null
+++ b/journal_cli/src/utils.rs
@@ -0,0 +1,20 @@
+use std::fs::File;
+use journal::types::ExportData;
+
+pub fn load_export_data(filename: &String)  -> Result<ExportData, Box<dyn std::error::Error>> {
+  let file = File::open(filename)?;
+
+	let export_data: ExportData = serde_json::from_reader(file)?;
+
+	// export_data
+	// 	.experiences
+	// 	.sort_by(|a, b| a.modified_time.cmp(&b.modified_time));
+
+	//for experience in export_data.experiences.iter_mut() {
+	//	experience
+	//		.ingestions
+	//		.sort_by(|a, b| a.ingestion_time.cmp(&b.ingestion_time));
+	//}
+
+  Ok(export_data)
+}
\ No newline at end of file