hsh001@cnc001:~$ linuxcnc -1
/usr/bin/linuxcnc: illegal option -- 1
linuxcnc: Run LINUXCNC

Usage:
	linuxcnc [-d] [-v]
		Choose the configuration file graphically

	linuxcnc [-k] [-d] [-v] path/to/your.ini
		Name the configuration file using its path

	linuxcnc [-k] [-d] [-v] -l
		Use the previous configuration file

	-d: Turn on "debug" mode
	-v: Turn on "verbose" mode
        -k: Continue in the presence of errors in .hal files
hsh001@cnc001:~$ /usr/bin/linuxcnc: illegal option -- 1
bash: /usr/bin/linuxcnc:: No such file or directory
hsh001@cnc001:~$ linuxcnc: Run LINUXCNC
bash: linuxcnc:: command not found
hsh001@cnc001:~$ 
hsh001@cnc001:~$ Usage:
bash: Usage:: command not found
hsh001@cnc001:~$ linuxcnc [-d] [-v]
LINUXCNC - 2.8.0
/bin/grep: /home/hsh001/[-d]: No such file or directory
Machine configuration directory is '/home/hsh001'
Machine configuration file is '[-d]'
Could not find ini file '/home/hsh001/[-d]'
hsh001@cnc001:~$ Choose the configuration file graphically
bash: Choose: command not found
hsh001@cnc001:~$ 
hsh001@cnc001:~$ linuxcnc [-k] [-d] [-v] path/to/your.ini
LINUXCNC - 2.8.0
/bin/grep: /home/hsh001/[-k]: No such file or directory
Machine configuration directory is '/home/hsh001'
Machine configuration file is '[-k]'
Could not find ini file '/home/hsh001/[-k]'
hsh001@cnc001:~$ Name the configuration file using its path
bash: Name: command not found
hsh001@cnc001:~$ 
hsh001@cnc001:~$ linuxcnc [-k] [-d] [-v] -l
LINUXCNC - 2.8.0
/bin/grep: /home/hsh001/[-k]: No such file or directory
Machine configuration directory is '/home/hsh001'
Machine configuration file is '[-k]'
Could not find ini file '/home/hsh001/[-k]'
hsh001@cnc001:~$ Use the previous configuration file
bash: Use: command not found
hsh001@cnc001:~$ 
hsh001@cnc001:~$ -d: Turn on "debug" mode
bash: -d:: command not found
hsh001@cnc001:~$ -v: Turn on "verbose" mode
bash: -v:: command not found
hsh001@cnc001:~$         -k: Continue in the presence of errors in .hal files
bash: -k:: command not found
hsh001@cnc001:~$ hsh001@cnc001:~$ 
bash: hsh001@cnc001:~$: command not found
hsh001@cnc001:~$