ENV (man1p)
env — set the environment for command invocation
env — set the environment for command invocation
alias — define or display aliases
id — return user identity
qsig — signal batch jobs
dd — convert and copy a file
admin — create and administer SCCS files (DEVELOPMENT)
comm — select or reject lines common to two files
qmsg — send message to batch jobs
nm — write the name list of an object file (DEVELOPMENT)
ctags — create a tags file (DEVELOPMENT, FORTRAN)