This includes both external programs and shell builtins. To keep the list from blowing up, only the characters [a-z] are considered. Mail me if you know of any others.
| aa | |
|---|---|
| ab | benchmark tool for apache |
| ac | accouting util |
| ad | |
| ae | advanced editor |
| af | |
| ag | |
| ah | |
| ai | |
| aj | |
| ak | |
| al | |
| am | |
| an | |
| ao | |
| ap | |
| aq | |
| ar | archiver (static library creation/extraction tool) |
| as | assembler |
| at | at scheduler |
| au | |
| av | |
| aw | |
| ax | |
| ay | |
| az | |
| ba | |
| bb | |
| bc | calculator |
| bd | |
| be | |
| bf | blowfish, part of SSLeay |
| bg | background, shell builtin |
| bh | |
| bi | |
| bj | |
| bk | |
| bl | |
| bm | |
| bn | |
| bo | |
| bp | |
| bq | |
| br | |
| bs | |
| bt | |
| bu | |
| bv | |
| bw | |
| bx | |
| by | |
| bz | |
| ca | part of SSLeay (certificate authority?) |
| cb | |
| cc | C compiler |
| cd | change directories, must be built into shell |
| ce | |
| cf | |
| cg | |
| ch | |
| ci | check in, part of RCS |
| cj | |
| ck | |
| cl | |
| cm | |
| cn | |
| co | check out, part of RCS |
| cp | copy files |
| cq | |
| cr | |
| cs | interactively examine C sources |
| ct | |
| cu | call up, communications program |
| cv | |
| cw | |
| cx | |
| cy | |
| cz | |
| da | |
| db | |
| dc | postfix arbitrary precision desktop calculator |
| dd | move blocks of data (disk dump?) |
| de | |
| df | disk free |
| dg | |
| dh | part of SSLeay |
| di | |
| dj | |
| dk | |
| dl | |
| dm | |
| dn | |
| do | shell builtin |
| dp | |
| dq | |
| dr | |
| ds | |
| dt | |
| du | disk usage |
| dv | |
| dw | |
| dx | |
| dy | |
| dz | |
| ea | |
| eb | |
| ec | |
| ed | the standard editor |
| ee | electric eyes, image viewer easy editor for FreeBSD |
| ef | |
| eg | |
| eh | |
| ei | |
| ej | |
| ek | |
| el | |
| em | |
| en | |
| eo | |
| ep | |
| eq | |
| er | |
| es | |
| et | |
| eu | |
| ev | |
| ew | |
| ex | text editor |
| ey | |
| ez | |
| fa | |
| fb | |
| fc | shell builtin, manipulate history |
| fd | frequency dump, part of UIUC SNDAN project |
| fe | |
| ff | |
| fg | |
| fh | |
| fi | shell builtin, end of 'if' statement |
| fj | |
| fk | |
| fl | |
| fm | |
| fn | |
| fo | |
| fp | |
| fq | |
| fr | |
| fs | |
| ft | |
| fu | |
| fv | |
| fw | |
| fx | |
| fy | |
| fz | |
| ga | |
| gb | |
| gc | |
| gd | |
| ge | |
| gf | |
| gg | |
| gh | |
| gi | |
| gj | |
| gk | |
| gl | |
| gm | |
| gn | |
| go | |
| gp | |
| gq | |
| gr | |
| gs | ghostscript, PostScript interpreter |
| gt | |
| gu | |
| gv | ghost view, frontend for ghostscript |
| gw | |
| gx | |
| gy | |
| gz | send files with ZMODEM, part of rz/sz package |
| ha | |
| hb | |
| hc | |
| hd | hex dump |
| he | |
| hf | |
| hg | |
| hh | |
| hi | |
| hj | |
| hk | |
| hl | |
| hm | |
| hn | |
| ho | |
| hp | |
| hq | |
| hr | |
| hs | |
| ht | |
| hu | |
| hv | |
| hw | |
| hx | |
| hy | |
| hz | |
| ia | |
| ib | |
| ic | |
| id | show user id |
| ie | |
| if | shell builtin |
| ig | |
| ih | |
| ii | |
| ij | |
| ik | |
| il | |
| im | |
| in | shell builtin ("for i in ...") |
| io | |
| ip | |
| iq | |
| ir | |
| is | |
| it | |
| iu | |
| iv | |
| iw | |
| ix | |
| iy | |
| iz | |
| ja | |
| jb | |
| jc | |
| jd | |
| je | |
| jf | |
| jg | |
| jh | |
| ji | |
| jj | |
| jk | |
| jl | |
| jm | |
| jn | |
| jo | |
| jp | |
| jq | |
| jr | |
| js | |
| jt | |
| ju | |
| jv | |
| jw | |
| jx | |
| jy | |
| jz | |
| ka | |
| kb | |
| kc | |
| kd | |
| ke | |
| kf | |
| kg | |
| kh | |
| ki | |
| kj | |
| kk | |
| kl | |
| km | |
| kn | |
| ko | |
| kp | |
| kq | |
| kr | |
| ks | |
| kt | |
| ku | |
| kv | |
| kw | |
| kx | |
| ky | |
| kz | |
| la | |
| lb | |
| lc | |
| ld | linker |
| le | |
| lf | |
| lg | |
| lh | |
| li | |
| lj | |
| lk | |
| ll | |
| lm | |
| ln | make hard or symbolic links |
| lo | |
| lp | SYSV printing system |
| lq | |
| lr | |
| ls | list files |
| lt | |
| lu | |
| lv | |
| lw | |
| lx | |
| ly | |
| lz | |
| ma | |
| mb | |
| mc | midnight commander, shell front end |
| md | |
| me | |
| mf | meta font, part of TeX |
| mg | |
| mh | |
| mi | |
| mj | |
| mk | |
| ml | |
| mm | |
| mn | |
| mo | |
| mp | |
| mq | |
| mr | |
| ms | |
| mt | magnetic tape manipulation |
| mu | |
| mv | move/rename files |
| mw | |
| mx | look up MX DNS record |
| my | |
| mz | |
| na | |
| nb | |
| nc | netcat, network utility |
| nd | |
| ne | |
| nf | |
| ng | |
| nh | |
| ni | |
| nj | |
| nk | |
| nl | number lines of files |
| nm | list symbols from object files |
| nn | net news, a news reader |
| no | |
| np | |
| nq | |
| nr | |
| ns | look up NS DNS record |
| nt | |
| nu | |
| nv | |
| nw | |
| nx | |
| ny | |
| nz | |
| oa | |
| ob | |
| oc | |
| od | object dump, display binary data in octal/hex/etc. |
| oe | |
| of | |
| og | |
| oh | |
| oi | |
| oj | |
| ok | |
| ol | |
| om | |
| on | |
| oo | |
| op | |
| oq | |
| or | |
| os | |
| ot | |
| ou | |
| ov | |
| ow | |
| ox | |
| oy | |
| oz | |
| pa | |
| pb | |
| pc | |
| pd | |
| pe | |
| pf | |
| pg | |
| ph | phone query, part of UIUC qi database package |
| pi | |
| pj | |
| pk | |
| pl | |
| pm | |
| pn | |
| po | |
| pp | |
| pq | |
| pr | print files |
| ps | list processes |
| pt | |
| pu | |
| pv | |
| pw | password/account manipulation |
| px | |
| py | |
| pz | |
| qa | |
| qb | |
| qc | |
| qd | |
| qe | |
| qf | |
| qg | |
| qh | |
| qi | |
| qj | |
| qk | |
| ql | |
| qm | |
| qn | |
| qo | |
| qp | |
| qr | |
| qs | |
| qt | |
| qu | |
| qv | |
| qw | |
| qx | |
| qy | |
| qz | |
| ra | |
| rb | receive file with YMODEM, part of rz/sz package |
| rc | Plan 9 shell receive file with XMODEM-CRC, part of rz/sz |
| rd | |
| re | |
| rf | |
| rg | |
| rh | |
| ri | |
| rj | |
| rk | |
| rl | |
| rm | remove files |
| rn | old news reader |
| ro | |
| rp | |
| rq | |
| rr | |
| rs | reshape data |
| rt | |
| ru | |
| rv | |
| rw | |
| rx | receive files with XMODEM, part of rz/sz |
| ry | receive files with YMODEM, part of rz/sz |
| rz | recieve files with ZMODEM, part of rz/sz |
| sa | list system accounting stats |
| sb | send files with YMODEM, part of rz/sz |
| sc | terminal-based spreadsheet |
| sd | signal dump, part of UIUC SNDAN package |
| se | |
| sf | |
| sg | |
| sh | Bourne shell |
| si | |
| sj | |
| sk | |
| sl | |
| sm | |
| sn | |
| so | |
| sp | signal plot, part of UIUC SNDAN package |
| sq | squeeze sorted list (prefix elimination compression) |
| sr | |
| ss | |
| st | |
| su | change user |
| sv | |
| sw | |
| sx | send files with XMODEM, part of rz/sz |
| sy | |
| sz | send files with ZMODEM, part of rz/sz |
| ta | |
| tb | |
| tc | |
| td | |
| te | |
| tf | tiny fugue, a mud client |
| tg | |
| th | |
| ti | |
| tj | |
| tk | |
| tl | |
| tm | |
| tn | |
| to | |
| tp | |
| tq | |
| tr | translate characters |
| ts | |
| tt | |
| tu | |
| tv | |
| tw | |
| tx | |
| ty | |
| tz | |
| ua | |
| ub | |
| uc | |
| ud | |
| ue | |
| uf | |
| ug | |
| uh | |
| ui | |
| uj | |
| uk | |
| ul | underline |
| um | |
| un | |
| uo | |
| up | |
| uq | |
| ur | |
| us | |
| ut | |
| uu | |
| uv | |
| uw | |
| ux | |
| uy | |
| uz | unzip gzip archive, simple script on Debian Linux |
| va | |
| vb | |
| vc | |
| vd | |
| ve | |
| vf | |
| vg | |
| vh | |
| vi | an excellent text editor you may have heard of |
| vj | |
| vk | |
| vl | |
| vm | |
| vn | |
| vo | |
| vp | |
| vq | |
| vr | |
| vs | |
| vt | |
| vu | |
| vv | |
| vw | |
| vx | |
| vy | |
| vz | |
| wa | |
| wb | |
| wc | word count |
| wd | |
| we | |
| wf | |
| wg | |
| wh | |
| wi | |
| wj | |
| wk | |
| wl | |
| wm | |
| wn | interface to WordNet lexical database |
| wo | |
| wp | |
| wq | |
| wr | |
| ws | |
| wt | |
| wu | |
| wv | |
| ww | |
| wx | |
| wy | |
| wz | |
| xa | |
| xb | |
| xc | |
| xd | |
| xe | |
| xf | |
| xg | |
| xh | |
| xi | |
| xj | |
| xk | |
| xl | |
| xm | |
| xn | |
| xo | |
| xp | |
| xq | |
| xr | |
| xs | |
| xt | |
| xu | |
| xv | image viewer by John Bradley |
| xw | |
| xx | |
| xy | |
| xz | |
| ya | |
| yb | |
| yc | |
| yd | |
| ye | |
| yf | |
| yg | |
| yh | |
| yi | |
| yj | |
| yk | |
| yl | |
| ym | |
| yn | |
| yo | |
| yp | |
| yq | |
| yr | |
| ys | |
| yt | |
| yu | |
| yv | |
| yw | |
| yx | |
| yy | |
| yz | |
| za | |
| zb | |
| zc | |
| zd | |
| ze | |
| zf | |
| zg | |
| zh | |
| zi | |
| zj | |
| zk | |
| zl | |
| zm | |
| zn | |
| zo | |
| zp | |
| zq | |
| zr | |
| zs | |
| zt | |
| zu | |
| zv | |
| zw | |
| zx | |
| zy | |
| zz |