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
Note that non-ascii characters in the above source code will be escaped (such as \x9f).