You get a st.cmd file with curly brackets instead of parenthesis for {TOP} and {IOC}. I don’t know where this is generated and where to report the bug. See the file below. This is minor but for someone who does it for the first time and never seen EPICS shell but be a big slowdown.
~/EPICS/IOCs/testIoc/iocBoot/ioctestIoc$ more st.cmd
#!../../bin/linux-x86_64/testIoc
#- You may have to change testIoc to something else
#- everywhere it appears in this file
< envPaths
cd "${TOP}"
## Register all support components
dbLoadDatabase "dbd/testIoc.dbd"
testIoc_registerRecordDeviceDriver pdbbase
## Load record instances
dbLoadTemplate "db/user.substitutions"
dbLoadRecords "db/testIocVersion.db", "user=femtoland"
dbLoadRecords "db/dbSubExample.db", "user=femtoland"
#- Set this to see messages from mySub
#var mySubDebug 1
#- Run this to trace the stages of iocInit
#traceIocInit
cd "${TOP}/iocBoot/${IOC}"
iocInit
## Start any sequence programs
#seq sncExample, "user=femtoland"