diff --git a/exexute_transformers_for_sag.sh b/exexute_transformers_for_sag.sh
index 26534747e3de8bdd5b18220ef4048ee64e111395..0dc63c716f0c770bf9cda591b4ed415ae8e47cdb 100644
--- a/exexute_transformers_for_sag.sh
+++ b/exexute_transformers_for_sag.sh
@@ -1,15 +1,23 @@
-#!/bin/bash
+!/bin/bash
 
+#create folder and change directory
 mkdir -p transformers_for_SAG
 cd ~/transformers_for_SAG
+
+#handle SSH-keys (the argument "$1" is the SSH-key to gitlab)
 eval $(ssh-agent -s)
-ssh-add ~/.ssh/gitlab_profile
+echo "$1" | base64 -d | tr -d '\r' | ssh-add - > /dev/null
+
+#pull gitlab repository
+echo "pulling gitlab repository"
 git init
 git pull git@transfer.hft-stuttgart.de:61sima1bif/transformers-for-sag.git
-echo "loading virtual environment"
+
+#loading conda environment
+echo "load and activate virtual environment"
 eval "$(conda shell.bash hook)"
 conda env create -f environment.yml
-echo "activating new environment"
 conda activate env_transformers_for_SAG
+
 echo "running python code"
 python run_SAG.py --do_eval --data_dir data/glue_data/SST-2 --model_type bert --model_name_or_path 'bert-base-uncased' --task_name sst-2 --output_dir output