If you only want to have one-line bash command in a build step, just use as below.
echo "##teamcity[setParameter name='build.timestamp' value='$(date +%m%d+%%m%%d)']"
(double % symbol is for TeamCity own escape rule to use % character)
It will set a MMdd parameter value right after the execution during runtime so very useful to put at any build step. Then, you can retrieve a parameter value afterward.
Note that you should create build.timestamp parameter firstly to TeamCity project.
A step further, I made a simple bash script to have bash date format timestamp. This script will set timestamp to whatever bash supported datetime format and parameter name to TeamCity.
name="" # TeamCity parameter name
format="%Y-%m-%dT%H:%M:%S%z" # ISO8601 format by default
result="" # a TeamCity parameter value to be set
for ARGUMENT in "$@"
do
KEY=$(echo "$ARGUMENT" | cut -f1 -d=)
VALUE=$(echo "$ARGUMENT" | cut -f2 -d=)
case "$KEY" in
name) name=${VALUE} ;;
format) format=${VALUE} ;;
*)
esac
done
result=$(date "+$format")
echo "##teamcity[setParameter name='$name' value='$result']"
Below usage will set ISO8601 format timestamp to build.timestamp parameter.
./teamcity_datetime.sh name=build.timestamp
If you want to set only MMdd, the execution could be as below.
./teamcity_datetime.sh name=build.timestamp format="%m%d"format="%%m%%d"