read a;case $a in du)echo 'du [-a| -s][-kx][-r][*file* ...]
cc [-c][-C][-e *epsym*] [-D *name*[=value]]... [-E][-f][-F][-g]
[-I *directory*]... [-L *directory*]... [-o *outfile*][-O][-p][-P]
[-q][-r][-s][-S][-u *symname*]... [-U *name*]... [-W *options*]... *operand*...
xargs [-t][-p][-e[*eofstr*]][-E *eofstr*][-I *replstr*][-i[*replstr*]]
[-L *number*][-l[*number*]][-n *number *[-x]][-s *size*][*utility *[*argument*...]]
val -
val [-s][-m *name*][-r *SID*][-y *type*]* file*...
ar -d[-v][-l]* archive file* ...
ar -m[-abilv][*posname*]* archive file* ...
ar -p[-v][-s]*archive* [*file* ...]
ar -q[-clv] *archive file* ...
ar -r[-cuv][-abil][*posname*]*archive file* ...
ar -t[-v][-s]*archive *[*file* ...]
ar -x[-v][-sCT]*archive *[*file* ...]
who [-mu]-s[-bHlprt][*file*]
who [-mTu][-abdHlprt][*file*]
who -q [*file*]
who am i
who am I
prs [-a][-d *dataspec*][-r[*SID*]]* file*...
prs [ -e| -l] -c *cutoff *[-d *dataspec*]* file*...
prs [ -e| -l] -r[*SID*][-d *dataspec*]*file*...';;
ln)echo 'ln [-f] *source_file target_file*
ln [-f] *source_file*... *target_dir*
locale [ -a| -m]
locale [-ck] *name*...
yacc [-dltv][-b *file_prefix*][-p *sym_prefix*]* grammar*
zcat [*file*...]
pack [-f][-] *file*...
du [-a| -s][-kx][-r][*file* ...]
df [-k][ -P|-t][*file*...]
dd [*operand* ...]
dis [-oLV][-F *function*]... [-l *string*]* file*...
fgrep [ -c| -l][-invx] -e *pattern_list *[*file*...]
fgrep [ -c| -l][-invx] -f *pattern_list *[*file*...]
fgrep [ -c| -l][-invx] *pattern_list *[*file*...]
grep [ -E| -F][ -c| -l| -q ][-insvx] -e *pattern_list...
*[-f *pattern_file*]...[*file*...]
grep [ -E| -F][ -c| -l| -q ][-insvx][-e *pattern_list...
*-f *pattern_file*...[*file*...]
grep [ -E| -F][ -c| -l| -q ][-insvx] *pattern_list*[*file*...]
egrep [ -c| -l][-inv] -e *pattern_list *[*file*...]
egrep [ -c| -l][-inv] -f *pattern_list *[*file*...]
egrep [ -c| -l][-inv] *pattern_list *[*file*...]
admin -i[*name*][-n][-a *login*][-d *flag*][-f *flag*][-m *mrlist*]
[-r *rel*][-t[*name*][-y[*comment*]] *newfile*
admin *-n*[-a *login*][-d *flag*][-f *flag*][-m *mrlist*][-t[*name*]][-y[*comment*]]
*newfile* ... 
admin [-a *login*][-d *flag*][-m *mrlist*][-r *rel*][-t[*name*]]
*file* ... 
admin -h *file* ... 
admin -z *file* ... 
admin -i[*name*][-n][-a *login*][-d *flag*][-f *flag*][-m *mrlist*]
[-r *rel*][-t[*name*][-y[*comment*]] *newfile*
admin *-n*[-a *login*][-d *flag*][-f *flag*][-m *mrlist*][-t[*name*]][-y[*comment*]]
*newfile* ... 
admin [-a *login*][-d *flag*][-m *mrlist*][-r *rel*][-t[*name*]]
*file* ... 
admin -h *file* ... 
admin -z *file* ... 
xargs [-t][-p][-e[*eofstr*]][-E *eofstr*][-I *replstr*][-i[*replstr*]]
[-L *number*][-l[*number*]][-n *number *[-x]][-s *size*][*utility *[*argument*...]]
admin -i[*name*][-n][-a *login*][-d *flag*][-f *flag*][-m *mrlist*]
[-r *rel*][-t[*name*][-y[*comment*]] *newfile*
admin *-n*[-a *login*][-d *flag*][-f *flag*][-m *mrlist*][-t[*name*]][-y[*comment*]]
*newfile* ... 
admin [-a *login*][-d *flag*][-m *mrlist*][-r *rel*][-t[*name*]]
*file* ... 
admin -h *file* ... 
admin -z *file* ... 
admin -i[*name*][-n][-a *login*][-d *flag*][-f *flag*][-m *mrlist*]
[-r *rel*][-t[*name*][-y[*comment*]] *newfile*
admin *-n*[-a *login*][-d *flag*][-f *flag*][-m *mrlist*][-t[*name*]][-y[*comment*]]
*newfile* ... 
admin [-a *login*][-d *flag*][-m *mrlist*][-r *rel*][-t[*name*]]
*file* ... 
admin -h *file* ... 
admin -z *file* ... 
sh [-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*]
[*command_file *[*argument*...]]
sh -c [-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*]*command_string
*[*command_name *[*argument*...]]
sh -s[-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*][*argument*]
sh [-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*]
[*command_file *[*argument*...]]
sh -c [-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*]*command_string
*[*command_name *[*argument*...]]
sh -s[-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*][*argument*]
sh [-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*]
[*command_file *[*argument*...]]
sh -c [-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*]*command_string
*[*command_name *[*argument*...]]
sh -s[-abCefimnuvx][-o *option*][+abCefmnuvx][+o *option*][*argument*]';;
*)echo 'c89 [-c][-D *name*[=*value*]]...[-E][-g][-I *directory*] ... [-L *directory*]
... [-o *outfile*][-O][-s][-U *name*] ... *operand* ...
bc [-l] [*file* ...]
pax [-cdnv][-f *archive*][-s *replstr*]...[*pattern*...]
pax -r[-cdiknuv][-f *archive*][-o *options*]...[-p *string*]...
[-s *replstr*]...[*pattern*...]
pax -w[-dituvX][-b *blocksize*][[-a][-f *archive*][-o *options*]...
[-s *replstr*]...[-x *format*][*file*...]
pax -r -w[-diklntuvX][-p *string*]...[-s *replstr*]...[*file*...]*
directory
-s /*old*/*new*/[gp]
fgrep [ -c| -l][-invx] -e *pattern_list *[*file*...]
fgrep [ -c| -l][-invx] -f *pattern_list *[*file*...]
fgrep [ -c| -l][-invx] *pattern_list *[*file*...]
uniq [-c|-d|-u][-f *fields*][-s *char*][*input_file *[*output_file*]]
uniq [-c|-d|-u][-*n*][+*m*][*input_file *[*output_file*]]
dirname *string*
rm [-fiRr]* file*...
hash [*utility*...]
date [-u] [+*format*]
date [-u] *mmddhhmm*[[*cc*]*yy*] 
read [-r]* var*...
expr *operand*
yacc [-dltv][-b *file_prefix*][-p *sym_prefix*]* grammar*
mail [-e] [-f *file*]
mail [-e| -p][-qr][-f *file*]
mail [-t]* name* ...
gencat *catfile msgfile*...
df [-k][ -P|-t][*file*...]
ed [-p *string*][-s][*file*]
ed [-p *string*][-][*file*]
fort77 [-c][-g][-L *directory*]... [-O *optlevel*][-o *outfile*][-s][-w]
*operand*...
localedef [-c][-f *charmap*][-i *sourcefile*]* name*
fc [-r][-e *editor*] [*first*[*last*]]
fc -l[-nr] [*first*[*last*]]
fc -s[*old*=*new*][*first*]
fg [*job_id*]'
esac