Today I noticed for the first time the concept of submodules in git. While cloning a repository from GitHub I noticed that one folder in it remained empty. After having a closer look, I noticed a reference to another repository tree like this:
Here, the folder htslib is actually from a tree in a different repository. After I cloned the repository like this (I forked it before):
git clone https://github.com/fischuu/SE-MEI.git
the folder htslib remained empty. That is because files from submodules are not fetched by default. This needs to be done separately by first initializing the submodules (first, cd into the cloned repository)
git submodule init
and then update the files from it
git submodule update
After these steps, the repository should be complete. However, instead of initializing the submodule separately, there is also a shortcut to fetch them all in one step by adding an additional parameter to the cloning like this:
Sometimes it happens that we have running a whole bunch of slurm jobs from different projects, some of them are running already for days, while others are just fired – and then we noticed, damn, the 100 jobs that I just fired are wrong and they need to be canceled. Unfortunately, there is no slurm command that can do that, it requires some kind of scripting to do that.
The following script takes as an input a slurm job ID and cancels all jobs larger than that (that belong to the logged in user…).
declare -a jobs=()
if [ -z "$1" ] ; then
echo "Minimum Job Number argument is required. Run as '$0 jobnum'"
myself="$(id -u -n)"
for j in $(squeue --user="$myself" --noheader --format='%i') ; do
if [ "$j" -gt "$minjobnum" ] ; then
If you store this e.g as killLarger.sh in your PATH somewhere, you can just use it from anywhere and cancel slurm jobs that are larger than this ID.