diff --git a/lint_string.sh b/lint_string.sh
index 2e571861..02080b6d 100755
--- a/lint_string.sh
+++ b/lint_string.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
-grep -rE --include="*.rs" "$1" .
-if [ $? -eq 0 ]; then
+
+if grep -rE --include="*.rs" "$1" .; then
     echo "'$1's found."
     exit 1
 else
diff --git a/manual_test.sh b/manual_test.sh
index 60420001..9d92fee4 100755
--- a/manual_test.sh
+++ b/manual_test.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Does not cover the complete function
 # Run it manually to ensure that we didn't break clap
 
@@ -33,8 +33,8 @@ commands=(
 for cmd in "${commands[@]}"
 do
   echo "Executing command: $cmd"
-  eval "$cmd"
-  if [ $? -ne 0 ]; then
+
+  if ! eval "$cmd"; then
     echo "Command failed: $cmd"
     exit 1
   fi
diff --git a/push_aur.sh b/push_aur.sh
index 742731a1..a1df7a55 100755
--- a/push_aur.sh
+++ b/push_aur.sh
@@ -1,12 +1,13 @@
-#!/bin/sh
-cd ../tod-bin/
+#!/bin/bash
+
+cd ../tod-bin/ || exit
 git pull
-cd ../tod/
+cd ../tod/ || exit
 makepkg --printsrcinfo > ../tod-bin/.SRCINFO
 mv PKGBUILD ../tod-bin/
-rm *.tar.gz
-cd ../tod-bin/
+rm ./*.tar.gz
+cd ../tod-bin/ || exit
 git add .
 git commit -m "new version"
 git push aur
-cd ../tod
\ No newline at end of file
+cd ../tod || exit
\ No newline at end of file
diff --git a/setup_aur.sh b/setup_aur.sh
index 77b8aec1..e2c3c58f 100755
--- a/setup_aur.sh
+++ b/setup_aur.sh
@@ -1,5 +1,7 @@
-cd ~/dev
+#!/bin/bash
+
+cd ~/dev || exit
 git clone ssh://aur@aur.archlinux.org/tod-bin.git
-cd tod-bin
+cd tod-bin || exit
 git remote add aur ssh://aur@aur.archlinux.org/tod-bin.git
-cd ../tod
+cd ../tod || exit
diff --git a/src/request.rs b/src/request.rs
index 8527e95f..7e4f0af4 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -126,6 +126,7 @@ pub fn complete_item(config: &Config) -> Result<String, String> {
 }
 
 /// Post to Todoist via sync API
+/// We use sync when we want natural languague processing.
 fn post_todoist_sync(
     config: &Config,
     url: String,
@@ -161,6 +162,7 @@ fn post_todoist_sync(
 }
 
 /// Post to Todoist via REST api
+/// We use this when we want more options and don't need natural language processing
 fn post_todoist_rest(
     config: &Config,
     url: String,
diff --git a/test.sh b/test.sh
index 8f086340..83d1f423 100755
--- a/test.sh
+++ b/test.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 cargo fmt &&
 cargo clippy -- -D warnings &&
 cargo tarpaulin -o lcov &&
diff --git a/update_test.sh b/update_test.sh
index 657cdae7..3e8d9533 100755
--- a/update_test.sh
+++ b/update_test.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 cargo update && \
 ./test.sh && \
 ./manual_test.sh && \
diff --git a/watch.sh b/watch.sh
deleted file mode 100755
index e842c2e8..00000000
--- a/watch.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/sh
-cargo watch -x check -x clippy -x test -s "rg TODO --type rust" && \
-echo "SUCCESS"
-
-