diff --git a/data/helpers.d/string b/data/helpers.d/string
index 7036b3b3c..a96157f78 100644
--- a/data/helpers.d/string
+++ b/data/helpers.d/string
@@ -43,12 +43,14 @@ ynh_replace_string () {
     local target_file
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
+    set +o xtrace # set +x
 
     local delimit=@
     # Escape the delimiter if it's in the string.
     match_string=${match_string//${delimit}/"\\${delimit}"}
     replace_string=${replace_string//${delimit}/"\\${delimit}"}
 
+    set -o xtrace # set -x
     sed --in-place "s${delimit}${match_string}${delimit}${replace_string}${delimit}g" "$target_file"
 }
 
diff --git a/data/helpers.d/utils b/data/helpers.d/utils
index 1d9e6833c..c957fdfcc 100644
--- a/data/helpers.d/utils
+++ b/data/helpers.d/utils
@@ -642,7 +642,7 @@ ynh_write_var_in_file() {
         set -o xtrace # set -x
         return 1
     fi
-    
+
     # Remove comments if needed
     local expression="$(echo "$expression_with_comment" | sed "s@$comments[^$string]*\$@@g" | sed "s@\s*[$endline]*\s*]*\$@@")"
     endline=${expression_with_comment#"$expression"}
@@ -737,6 +737,7 @@ ynh_secure_remove () {
     local file
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
+    set +o xtrace # set +x
 
     local forbidden_path=" \
     /var/www \
@@ -764,6 +765,8 @@ ynh_secure_remove () {
     else
         ynh_print_info --message="'$file' wasn't deleted because it doesn't exist."
     fi
+
+    set -o xtrace # set -x
 }
 
 # Extract a key from a plain command output
diff --git a/src/yunohost/log.py b/src/yunohost/log.py
index b7b585c94..ebf06069c 100644
--- a/src/yunohost/log.py
+++ b/src/yunohost/log.py
@@ -151,26 +151,37 @@ def log_show(
         filter_irrelevant = True
 
     if filter_irrelevant:
-        filters = [
-            r"set [+-]x$",
-            r"set [+-]o xtrace$",
-            r"local \w+$",
-            r"local legacy_args=.*$",
-            r".*Helper used in legacy mode.*",
-            r"args_array=.*$",
-            r"local -A args_array$",
-            r"ynh_handle_getopts_args",
-            r"ynh_script_progression",
-        ]
+
+        def _filter(lines):
+            filters = [
+                r"set [+-]x$",
+                r"set [+-]o xtrace$",
+                r"set [+-]o errexit$",
+                r"set [+-]o nounset$",
+                r"trap '' EXIT",
+                r"local \w+$",
+                r"local exit_code=(1|0)$",
+                r"local legacy_args=.*$",
+                r"local -A args_array$",
+                r"args_array=.*$",
+                r"ret_code=1",
+                r".*Helper used in legacy mode.*",
+                r"ynh_handle_getopts_args",
+                r"ynh_script_progression",
+                r"sleep 0.5",
+                r"'\[' (1|0) -eq (1|0) '\]'$",
+                r"\[?\['? -n '' '?\]\]?$",
+                r"rm -rf /var/cache/yunohost/download/$",
+                r"type -t ynh_clean_setup$",
+                r"DEBUG - \+ echo '",
+                r"DEBUG - \+ exit (1|0)$",
+            ]
+            filters = [re.compile(f) for f in filters]
+            return [line for line in lines if not any(f.search(line.strip()) for f in filters)]
     else:
-        filters = []
+        def _filter(lines):
+            return lines
 
-    def _filter_lines(lines, filters=[]):
-
-        filters = [re.compile(f) for f in filters]
-        return [
-            line for line in lines if not any(f.search(line.strip()) for f in filters)
-        ]
 
     # Normalize log/metadata paths and filenames
     abs_path = path
@@ -209,7 +220,7 @@ def log_show(
             content += "\n============\n\n"
         if os.path.exists(log_path):
             actual_log = read_file(log_path)
-            content += "\n".join(_filter_lines(actual_log.split("\n"), filters))
+            content += "\n".join(_filter(actual_log.split("\n")))
 
         url = yunopaste(content)
 
@@ -282,13 +293,13 @@ def log_show(
     if os.path.exists(log_path):
         from yunohost.service import _tail
 
-        if number and filters:
+        if number and filter_irrelevant:
             logs = _tail(log_path, int(number * 4))
         elif number:
             logs = _tail(log_path, int(number))
         else:
             logs = read_file(log_path)
-        logs = _filter_lines(logs, filters)
+        logs = list(_filter(logs))
         if number:
             logs = logs[-number:]
         infos["log_path"] = log_path