Full Discussion: How to generate the list?
Top Forums Shell Programming and Scripting How to generate the list? Post 302408523 by rdcwayx on Monday 29th of March 2010 07:40:37 PM
Old 03-29-2010
Quote:
Originally Posted by Tytalus
The following should do what you want:

Code:
echo a b c | nawk '
function perm(s,x,i,j,n,tmp) {
  n = split(s, L)
  if (x > n) { print s;return}
  for (i=x; i<=n; i++) {
    if (i != x) {
      tmp = L[x]; L[x] = L[i]; L[i] = tmp
      nextstr = L[1]
      for (j=2; j<=n; j++) nextstr = nextstr" "L[j]
    } 
    else {
      nextstr = s
    }
  perm(nextstr, x+1)
  n = split(s, L)
  }
}

{
    perm($0,1)
}'
a b c
a c b
b a c
b c a
c b a
c a b

HTH
Thanks, the result is what I need. The only problem is I'd like to use the input and output word without space inside. I try to adjust your output, but not fix in this awk code.

If I can get the result with input, such as by "script.sh expect", it will be more better.

Code:
echo e x p e c t | nawk '
function perm(s,x,i,j,n,tmp) {
  n = split(s, L)
  if (x > n) { print s;return}
  for (i=x; i<=n; i++) {
    if (i != x) {
      tmp = L[x]; L[x] = L[i]; L[i] = tmp
      nextstr = L[1]
      for (j=2; j<=n; j++) nextstr = nextstr" "L[j]
    }
    else {
      nextstr = s
    }
  perm(nextstr, x+1)
  n = split(s, L)
  }
}

{
    perm($0,1)
}' |sed 's/ //g' |fmt
expect expetc expcet expcte exptce exptec exepct exeptc execpt exectp
exetcp exetpc except excetp excpet excpte exctpe exctep extecp extepc
extcep extcpe extpce extpec epxect epxetc epxcet epxcte epxtce epxtec
epexct epextc epecxt epectx epetcx epetxc epcext epcetx epcxet epcxte
epctxe epctex eptecx eptexc eptcex eptcxe eptxce eptxec eepxct eepxtc
eepcxt eepctx eeptcx eeptxc eexpct eexptc eexcpt eexctp eextcp eextpc
eecxpt eecxtp eecpxt eecptx eectpx eectxp eetxcp eetxpc eetcxp eetcpx
eetpcx eetpxc ecpext ecpetx ecpxet ecpxte ecptxe ecptex ecepxt eceptx
ecexpt ecextp ecetxp ecetpx ecxept ecxetp ecxpet ecxpte ecxtpe ecxtep
ectexp ectepx ectxep ectxpe ectpxe ectpex etpecx etpexc etpcex etpcxe
etpxce etpxec etepcx etepxc etecpx etecxp etexcp etexpc etcepx etcexp
etcpex etcpxe etcxpe etcxep etxecp etxepc etxcep etxcpe etxpce etxpec
xepect xepetc xepcet xepcte xeptce xeptec xeepct xeeptc xeecpt xeectp
xeetcp xeetpc xecept xecetp xecpet xecpte xectpe xectep xetecp xetepc
xetcep xetcpe xetpce xetpec xpeect xpeetc xpecet xpecte xpetce xpetec
xpeect xpeetc xpecet xpecte xpetce xpetec xpceet xpcete xpceet xpcete
xpctee xpctee xptece xpteec xptcee xptcee xptece xpteec xepect xepetc
xepcet xepcte xeptce xeptec xeepct xeeptc xeecpt xeectp xeetcp xeetpc
xecept xecetp xecpet xecpte xectpe xectep xetecp xetepc xetcep xetcpe
xetpce xetpec xcpeet xcpete xcpeet xcpete xcptee xcptee xcepet xcepte
xceept xceetp xcetep xcetpe xceept xceetp xcepet xcepte xcetpe xcetep
xcteep xctepe xcteep xctepe xctpee xctpee xtpece xtpeec xtpcee xtpcee
xtpece xtpeec xtepce xtepec xtecpe xtecep xteecp xteepc xtcepe xtceep
xtcpee xtcpee xtcepe xtceep xteecp xteepc xtecep xtecpe xtepce xtepec
pxeect pxeetc pxecet pxecte pxetce pxetec pxeect pxeetc pxecet pxecte
pxetce pxetec pxceet pxcete pxceet pxcete pxctee pxctee pxtece pxteec
pxtcee pxtcee pxtece pxteec pexect pexetc pexcet pexcte pextce pextec
peexct peextc peecxt peectx peetcx peetxc pecext pecetx pecxet pecxte
pectxe pectex petecx petexc petcex petcxe petxce petxec peexct peextc
peecxt peectx peetcx peetxc pexect pexetc pexcet pexcte pextce pextec
pecxet pecxte pecext pecetx pectex pectxe petxce petxec petcxe petcex
petecx petexc pceext pceetx pcexet pcexte pcetxe pcetex pceext pceetx
pcexet pcexte pcetxe pcetex pcxeet pcxete pcxeet pcxete pcxtee pcxtee
pctexe pcteex pctxee pctxee pctexe pcteex pteecx pteexc ptecex ptecxe
ptexce ptexec pteecx pteexc ptecex ptecxe ptexce ptexec ptceex ptcexe
ptceex ptcexe ptcxee ptcxee ptxece ptxeec ptxcee ptxcee ptxece ptxeec
expect expetc expcet expcte exptce exptec exepct exeptc execpt exectp
exetcp exetpc except excetp excpet excpte exctpe exctep extecp extepc
extcep extcpe extpce extpec epxect epxetc epxcet epxcte epxtce epxtec
epexct epextc epecxt epectx epetcx epetxc epcext epcetx epcxet epcxte
epctxe epctex eptecx eptexc eptcex eptcxe eptxce eptxec eepxct eepxtc
eepcxt eepctx eeptcx eeptxc eexpct eexptc eexcpt eexctp eextcp eextpc
eecxpt eecxtp eecpxt eecptx eectpx eectxp eetxcp eetxpc eetcxp eetcpx
eetpcx eetpxc ecpext ecpetx ecpxet ecpxte ecptxe ecptex ecepxt eceptx
ecexpt ecextp ecetxp ecetpx ecxept ecxetp ecxpet ecxpte ecxtpe ecxtep
ectexp ectepx ectxep ectxpe ectpxe ectpex etpecx etpexc etpcex etpcxe
etpxce etpxec etepcx etepxc etecpx etecxp etexcp etexpc etcepx etcexp
etcpex etcpxe etcxpe etcxep etxecp etxepc etxcep etxcpe etxpce etxpec
cxpeet cxpete cxpeet cxpete cxptee cxptee cxepet cxepte cxeept cxeetp
cxetep cxetpe cxeept cxeetp cxepet cxepte cxetpe cxetep cxteep cxtepe
cxteep cxtepe cxtpee cxtpee cpxeet cpxete cpxeet cpxete cpxtee cpxtee
cpexet cpexte cpeext cpeetx cpetex cpetxe cpeext cpeetx cpexet cpexte
cpetxe cpetex cpteex cptexe cpteex cptexe cptxee cptxee cepxet cepxte
cepext cepetx ceptex ceptxe cexpet cexpte cexept cexetp cextep cextpe
ceexpt ceextp ceepxt ceeptx ceetpx ceetxp cetxep cetxpe cetexp cetepx
cetpex cetpxe cepext cepetx cepxet cepxte ceptxe ceptex ceepxt ceeptx
ceexpt ceextp ceetxp ceetpx cexept cexetp cexpet cexpte cextpe cextep
cetexp cetepx cetxep cetxpe cetpxe cetpex ctpeex ctpexe ctpeex ctpexe
ctpxee ctpxee ctepex ctepxe cteepx cteexp ctexep ctexpe cteepx cteexp
ctepex ctepxe ctexpe ctexep ctxeep ctxepe ctxeep ctxepe ctxpee ctxpee
txpece txpeec txpcee txpcee txpece txpeec txepce txepec txecpe txecep
txeecp txeepc txcepe txceep txcpee txcpee txcepe txceep txeecp txeepc
txecep txecpe txepce txepec tpxece tpxeec tpxcee tpxcee tpxece tpxeec
tpexce tpexec tpecxe tpecex tpeecx tpeexc tpcexe tpceex tpcxee tpcxee
tpcexe tpceex tpeecx tpeexc tpecex tpecxe tpexce tpexec tepxce tepxec
tepcxe tepcex tepecx tepexc texpce texpec texcpe texcep texecp texepc
tecxpe tecxep tecpxe tecpex tecepx tecexp teexcp teexpc teecxp teecpx
teepcx teepxc tcpexe tcpeex tcpxee tcpxee tcpexe tcpeex tcepxe tcepex
tcexpe tcexep tceexp tceepx tcxepe tcxeep tcxpee tcxpee tcxepe tcxeep
tceexp tceepx tcexep tcexpe tcepxe tcepex tepecx tepexc tepcex tepcxe
tepxce tepxec teepcx teepxc teecpx teecxp teexcp teexpc tecepx tecexp
tecpex tecpxe tecxpe tecxep texecp texepc texcep texcpe texpce texpec



---------- Post updated at 10:40 AM ---------- Previous update was at 10:36 AM ----------

Quote:
Originally Posted by alister
eeeeee eeeeex eeeeep eeeeee eeeeec eeeeet eeeexe eeeexx eeeexp
Alister
Thank you, maybe I don't express clearly, I just want to reorganize the letters, no new letters to be added.

for above sample, in word "expect", there is only two "e", but in your sample output, there are more "e"s.

Last edited by rdcwayx; 03-29-2010 at 09:47 PM..
 

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