diff --git a/puppet/zulip/files/postgresql/pg_backup_and_purge b/puppet/zulip/files/postgresql/pg_backup_and_purge
index 9af5b7b432..c3b4f8857c 100755
--- a/puppet/zulip/files/postgresql/pg_backup_and_purge
+++ b/puppet/zulip/files/postgresql/pg_backup_and_purge
@@ -18,7 +18,7 @@ logger = logging.getLogger(__name__)
 
 def run(args: List[str], dry_run: bool = False) -> str:
     if dry_run:
-        print("Would have run: " + " ".join(map(shlex.quote, args)))
+        print(f"Would have run: {shlex.join(args)}")
         return ""
 
     return subprocess.check_output(args, stdin=subprocess.DEVNULL, text=True)
diff --git a/scripts/lib/zulip_tools.py b/scripts/lib/zulip_tools.py
index e9ac1046bb..b825cfd93c 100755
--- a/scripts/lib/zulip_tools.py
+++ b/scripts/lib/zulip_tools.py
@@ -227,19 +227,14 @@ def release_deployment_lock() -> None:
 
 def run(args: Sequence[str], **kwargs: Any) -> None:
     # Output what we're doing in the `set -x` style
-    print("+ {}".format(" ".join(map(shlex.quote, args))), flush=True)
+    print(f"+ {shlex.join(args)}", flush=True)
 
     try:
         subprocess.check_call(args, **kwargs)
     except subprocess.CalledProcessError:
         print()
         print(
-            WHITEONRED
-            + "Error running a subcommand of {}: {}".format(
-                sys.argv[0],
-                " ".join(map(shlex.quote, args)),
-            )
-            + ENDC
+            WHITEONRED + f"Error running a subcommand of {sys.argv[0]}: {shlex.join(args)}" + ENDC
         )
         print(WHITEONRED + "Actual error output for the subcommand is just above this." + ENDC)
         print()
@@ -258,7 +253,7 @@ def log_management_command(cmd: Sequence[str], log_path: str) -> None:
     logger.addHandler(file_handler)
     logger.setLevel(logging.INFO)
 
-    logger.info("Ran %s", " ".join(map(shlex.quote, cmd)))
+    logger.info("Ran %s", shlex.join(cmd))
 
 
 def get_environment() -> str:
@@ -567,7 +562,7 @@ def get_config_file() -> configparser.RawConfigParser:
 
 
 def get_deploy_options(config_file: configparser.RawConfigParser) -> List[str]:
-    return shlex.split(get_config(config_file, "deployment", "deploy_options", "").strip())
+    return shlex.split(get_config(config_file, "deployment", "deploy_options", ""))
 
 
 def run_psql_as_postgres(
@@ -575,20 +570,7 @@ def run_psql_as_postgres(
     sql_query: str,
 ) -> None:
     dbname = get_config(config_file, "postgresql", "database_name", "zulip")
-    subcmd = " ".join(
-        map(
-            shlex.quote,
-            [
-                "psql",
-                "-v",
-                "ON_ERROR_STOP=1",
-                "-d",
-                dbname,
-                "-c",
-                sql_query,
-            ],
-        )
-    )
+    subcmd = shlex.join(["psql", "-v", "ON_ERROR_STOP=1", "-d", dbname, "-c", sql_query])
     subprocess.check_call(["su", "postgres", "-c", subcmd])
 
 
diff --git a/tools/diagnose b/tools/diagnose
index e992db50a2..1b05167c38 100755
--- a/tools/diagnose
+++ b/tools/diagnose
@@ -25,7 +25,7 @@ def run(check_func: Callable[[], bool]) -> None:
 
 
 def run_command(args: List[str]) -> None:
-    print(" ".join(map(shlex.quote, args)))
+    print(shlex.join(args))
     subprocess.check_call(args)
 
 
diff --git a/tools/review b/tools/review
index 820c0e37d6..d00c5049b0 100755
--- a/tools/review
+++ b/tools/review
@@ -12,7 +12,7 @@ def exit(message: str) -> None:
 
 
 def run(command: List[str]) -> None:
-    print("\n>>> " + " ".join(map(shlex.quote, command)))
+    print(f"\n>>> {shlex.join(command)}")
     subprocess.check_call(command)
 
 
diff --git a/tools/test-js-with-puppeteer b/tools/test-js-with-puppeteer
index 46b2f7cb55..1aae323df1 100755
--- a/tools/test-js-with-puppeteer
+++ b/tools/test-js-with-puppeteer
@@ -73,7 +73,7 @@ def run_single_test(test_file: str, test_number: int, total_tests: int) -> int:
     ]
 
     test_name = os.path.basename(test_file)
-    cmd_str = " ".join(map(shlex.quote, cmd))
+    cmd_str = shlex.join(cmd)
     print(
         f"\n\n===================== ({test_number}/{total_tests}) {test_name} =====================\nRunning {cmd_str}\n\n",
         flush=True,
diff --git a/zerver/openapi/markdown_extension.py b/zerver/openapi/markdown_extension.py
index f270719785..d120e9f217 100644
--- a/zerver/openapi/markdown_extension.py
+++ b/zerver/openapi/markdown_extension.py
@@ -300,7 +300,7 @@ def generate_curl_example(
     example_endpoint = endpoint.format_map(format_dict)
 
     curl_first_line_parts = ["curl", *curl_method_arguments(example_endpoint, method, api_url)]
-    lines.append(" ".join(map(shlex.quote, curl_first_line_parts)))
+    lines.append(shlex.join(curl_first_line_parts))
 
     insecure_operations = ["/dev_fetch_api_key:post", "/fetch_api_key:post"]
     if operation_security is None:
diff --git a/zerver/views/zephyr.py b/zerver/views/zephyr.py
index d8917d3270..a434a7ee93 100644
--- a/zerver/views/zephyr.py
+++ b/zerver/views/zephyr.py
@@ -67,9 +67,7 @@ def webathena_kerberos_login(
             api_key,
             base64.b64encode(ccache).decode(),
         ]
-        subprocess.check_call(
-            ["ssh", settings.PERSONAL_ZMIRROR_SERVER, "--", " ".join(map(shlex.quote, command))]
-        )
+        subprocess.check_call(["ssh", settings.PERSONAL_ZMIRROR_SERVER, "--", shlex.join(command)])
     except subprocess.CalledProcessError:
         logging.exception("Error updating the user's ccache", stack_info=True)
         raise JsonableError(_("We were unable to set up mirroring for you"))