Update file UNIX_HPC_cheat_sheet.md

exercises/UNIX_HPC_cheat_sheet.md

@@ -97,10 +97,11 @@ fi
 ```
 
 
+
 ## Running Singularity containers
-Running a container called `my_software_container` that contains a command called `my_software`
+Running a container called `my_software_container` that contains a command called `my_software` (on a computation node)
 ```bash
-my_software_container.sif my_software [parameters]             
+srun my_software_container.sif my_software [parameters]             
 ```
 
 
@@ -134,15 +135,29 @@ In a script `myjob.sh`:
 #SBATCH --error=[name]_%j.err
 
 # load any required modules 
-module load [module name]
+module load singularityce
 
 command1
 command2
-command3
+
+srun my_software_container.sif my_software [parameters]   
+
+
 ```
 Submit script as job to the computing nodes:
 ```bash
 sbatch myjob.sh
 ```
 
+## Managing jobs
+
+```bash
+# show queue of jobs submitted by a specified user
+squeue -u [username]   
+# show queue of jobs submitted by a specified user, with customised output field (including job name!)        
+squeue -u [username] -O JobID,UserName,Name,State,NumCPUs,MinMemory,TimeUsed,TimeLimit,Nodelist 
+
+
+scancel [jobid]         # cancels jobs
+```