Hi Jim,

I am want to merge two files into one file :

Here is my code . But the problem with this is that I am getting the 2nd
file appended to the first when i write temp3 in my code to the text file. I
am not sure what mistake I am doing .

also find the test files to run the code .

Please help me with this !!!!!!!!!!!!!!!!!!!!!!!

temp1 <- NULL
temp2 <- NULL
x.col.names <-c("genesymbol","geneDescription","orgSymbol","orgName")
y.col.names <- c("genesymbol","geneDescription","orgSymbol","orgName")
for (i in 1:length(list1.bp.files.names)){
    temp1 <-
read.table(list1.bp.files.names[i],sep="\t",header=T,stringsAsFactors=F,quote="\"")
  for (j in 1:length(list2.bp.files.names)){
     temp2 <-
read.table(list2.bp.files.names[j],sep="\t",header=T,stringsAsFactors=F,quote="\"")
    temp3 <- merge(temp1,temp2,by.x = x.col.names,by.y=y.col.names,all=T)
    myfile<-gsub("( )", "", paste("1_",merge.bp.files.names[i],".txt"))
    write.table(temp3,file=myfile,sep="\t",quote=FALSE,row.names=F)
  }
 }
Thanks
--Hari--
genesymbol      geneDescription orgSymbol       orgName
E2f5     e2f transcription factor 5      RG      Rattus norvegicus
Msh2    muts homolog 2 (e. coli)        RG      Rattus norvegicus
Kpna2   karyopherin (importin) alpha 2  RG      Rattus norvegicus
Gtpbp4  gtp binding protein 4   RG      Rattus norvegicus
Dtymk_predicted         deoxythymidylate kinase (predicted)     RG      Rattus 
norvegicus
Ruvbl1  ruvb-like protein 1     RG      Rattus norvegicus
Cetn2   centrin 2       RG      Rattus norvegicus
Foxm1   forkhead box m1         RG      Rattus norvegicus
Abtb1   ankyrin repeat and btb (poz) domain containing 1        RG      Rattus 
norvegicus
Myc     myelocytomatosis viral oncogene homolog (avian)         RG      Rattus 
norvegicus
Il1b    interleukin 1 beta      RG      Rattus norvegicus
Cdc20   cell division cycle 20 homolog (s. cerevisiae)  RG      Rattus 
norvegicus
Cdc25a  cell division cycle 25 homolog a (s. cerevisiae)        RG      Rattus 
norvegicus
Kifc1   kinesin family member c1        RG      Rattus norvegicus
Fancd2  fanconi anemia d2 protein       RG      Rattus norvegicus
Rhob    rhob gene       RG      Rattus norvegicus
Clp1    cardiac lineage protein 1       RG      Rattus norvegicus
Psmd1   proteasome (prosome, macropain) 26s subunit, non-atpase, 1      RG      
Rattus norvegicus
Mad2l1_predicted        mad2 (mitotic arrest deficient, homolog)-like 1 (yeast) 
(predicted)     RG      Rattus norvegicus
Dhcr24  24-dehydrocholesterol reductase         RG      Rattus norvegicus
Ahr     aryl hydrocarbon receptor       RG      Rattus norvegicus
Rnd3    ras homolog gene family, member e       RG      Rattus norvegicus
Acvr1b  activin a receptor, type 1b     RG      Rattus norvegicus
Mcm2_predicted  minichromosome maintenance deficient 2 mitotin (s. cerevisiae) 
(predicted)      RG      Rattus norvegicus
Mapre3  microtubule-associated protein, rp/eb family, member 3  RG      Rattus 
norvegicus
Mapre1  microtubule-associated protein, rp/eb family, member 1  RG      Rattus 
norvegicus
Tardbp  tar dna binding protein         RG      Rattus norvegicus
Cdca3   cell division cycle associated 3        RG      Rattus norvegicus
Ccnb1   cyclin b1       RG      Rattus norvegicus
Npm1    nucleophosmin 1         RG      Rattus norvegicus
Pcaf    p300/cbp-associated factor      RG      Rattus norvegicus
Cdc2a   cell division cycle 2 homolog a (s. pombe)      RG      Rattus 
norvegicus
Dnajc2  dnaj (hsp40) homolog, subfamily c, member 2     RG      Rattus 
norvegicus
Dab2ip  disabled homolog 2 (drosophila) interacting protein     RG      Rattus 
norvegicus
Id2     inhibitor of dna binding 2, dominant negative helix-loop-helix protein  
RG      Rattus norvegicus
Kif23_predicted         kinesin family member 23 (predicted)    RG      Rattus 
norvegicus
Nek6    nima (never in mitosis gene a)-related expressed kinase 6       RG      
Rattus norvegicus
Pola1   polymerase (dna directed), alpha 1      RG      Rattus norvegicus
Il1a    interleukin 1 alpha     RG      Rattus norvegicus
Ccnc    cyclin c        RG      Rattus norvegicus
Ccnb2   cyclin b2       RG      Rattus norvegicus
Pbef1   pre-b-cell colony enhancing factor 1    RG      Rattus norvegicus
Rad17   rad17 homolog (s. pombe)        RG      Rattus norvegicus
Racgap1_predicted       rac gtpase-activating protein 1 (predicted)     RG      
Rattus norvegicus
Ccna2   cyclin a2       RG      Rattus norvegicus
Cdca8   cell division cycle associated 8        RG      Rattus norvegicus
Sesn1_predicted         sestrin 1 (predicted)   RG      Rattus norvegicus
Tpx2_predicted  tpx2, microtubule-associated protein homolog (xenopus laevis) 
(predicted)       RG      Rattus norvegicus
Dmtf1   cyclin d binding myb-like transcription factor 1        RG      Rattus 
norvegicus
Chek1   checkpoint kinase 1 homolog (s. pombe)  RG      Rattus norvegicus
Mlh1    mutl homolog 1 (e. coli)        RG      Rattus norvegicus
Cgref1  cell growth regulator with ef hand domain 1     RG      Rattus 
norvegicus
Nek2    nima (never in mitosis gene a)-related expressed kinase 2       RG      
Rattus norvegicus
Tbrg1   transforming growth factor beta regulated gene 1        RG      Rattus 
norvegicus
Kif2c   kinesin-related protein 2       RG      Rattus norvegicus
Akap8   a kinase (prka) anchor protein 8        RG      Rattus norvegicus
Zw10    zw10 homolog, centromere/kinetochore protein (drosophila)       RG      
Rattus norvegicus
Fabp1   fatty acid binding protein 1, liver     RG      Rattus norvegicus
Pa2g4   proliferation-associated 2g4    RG      Rattus norvegicus
Myh9    myosin, heavy polypeptide 9     RG      Rattus norvegicus
Mdc1    mediator of dna damage checkpoint 1     RG      Rattus norvegicus
Cdk2    cyclin dependent kinase 2       RG      Rattus norvegicus
Steap3  tumor suppressor phyde  RG      Rattus norvegicus
Vegfa   vascular endothelial growth factor a    RG      Rattus norvegicus
Gadd45a         growth arrest and dna-damage-inducible 45 alpha         RG      
Rattus norvegicus
Anp32b  acidic nuclear phosphoprotein 32 family, member b       RG      Rattus 
norvegicus
Cdk4    cyclin-dependent kinase 4       RG      Rattus norvegicus
Bub1_predicted  budding uninhibited by benzimidazoles 1 homolog (s. cerevisiae) 
(predicted)     RG      Rattus norvegicus
Cdkn1a  cyclin-dependent kinase inhibitor 1a    RG      Rattus norvegicus
Uhrf1   ubiquitin-like, containing phd and ring finger domains, 1 (mapped)      
RG      Rattus norvegicus
Tcf3_predicted  transcription factor 3 (predicted)      RG      Rattus 
norvegicus
Snf1lk  snf1-like kinase        RG      Rattus norvegicus
Stmn1   stathmin 1      RG      Rattus norvegicus
Eml4_predicted  echinoderm microtubule associated protein like 4 (predicted)    
RG      Rattus norvegicus
Cenpe_predicted         centromere protein e (predicted)        RG      Rattus 
norvegicus
Ppm1g   protein phosphatase 1g (formerly 2c), magnesium-dependent, gamma 
isoform        RG      Rattus norvegicus
Hgf     hepatocyte growth factor        RG      Rattus norvegicus
Mapk14  mitogen activated protein kinase 14     RG      Rattus norvegicus
Nbn     nibrin  RG      Rattus norvegicus
Ccnl1   cyclin l1       RG      Rattus norvegicus
E2f1    e2f transcription factor 1      RG      Rattus norvegicus
Nasp    nuclear autoantigenic sperm protein     RG      Rattus norvegicus
Bmp2    bone morphogenetic protein 2    RG      Rattus norvegicus
Bard1   brca1 associated ring domain 1  RG      Rattus norvegicus
Acvr1   activin a receptor, type 1      RG      Rattus norvegicus
Xpc_predicted   xeroderma pigmentosum, complementation group c (predicted)      
RG      Rattus norvegicus
Cdc26   cell division cycle 26  RG      Rattus norvegicus
Ptp4a1  protein tyrosine phosphatase 4a1        RG      Rattus norvegicus
Ttk_predicted   ttk protein kinase (predicted)  RG      Rattus norvegicus
genesymbol      geneDescription orgSymbol       orgName
Fdft1    farnesyl diphosphate farnesyl transferase 1     RG      Rattus 
norvegicus
Sc4mol  sterol-c4-methyl oxidase-like   RG      Rattus norvegicus
Fbp1    fructose-1,6- biphosphatase 1   RG      Rattus norvegicus
Acat2   similar to acetyl coa transferase-like  RG      Rattus norvegicus
Impa1   inositol (myo)-1(or 4)-monophosphatase 1        RG      Rattus 
norvegicus
Pmm2_predicted  phosphomannomutase 2 (predicted)        RG      Rattus 
norvegicus
G6pc    glucose-6-phosphatase, catalytic        RG      Rattus norvegicus
Pklr    pyruvate kinase, liver and red blood cell       RG      Rattus 
norvegicus
Apoa2   apolipoprotein a-ii     RG      Rattus norvegicus
Tgfb2   transforming growth factor, beta 2      RG      Rattus norvegicus
Gpi     glucose phosphate isomerase     RG      Rattus norvegicus
Ca5a    carbonic anhydrase 5    RG      Rattus norvegicus
Irs2    insulin receptor substrate 2    RG      Rattus norvegicus
Insig2  insulin induced gene 2  RG      Rattus norvegicus
Dgat2   diacylglycerol o-acyltransferase homolog 2 (mouse)      RG      Rattus 
norvegicus
Dhcr7   7-dehydrocholesterol reductase  RG      Rattus norvegicus
Sphk2   sphingosine kinase 2    RG      Rattus norvegicus
Cpt1a   carnitine palmitoyltransferase 1, liver         RG      Rattus 
norvegicus
Tm7sf2  transmembrane 7 superfamily member 2    RG      Rattus norvegicus
Sds     serine dehydratase      RG      Rattus norvegicus
Idi1    isopentenyl-diphosphate delta isomerase         RG      Rattus 
norvegicus
Chdh    choline dehydrogenase   RG      Rattus norvegicus
Comt    catechol-o-methyltransferase    RG      Rattus norvegicus
Aldoa   aldolase a      RG      Rattus norvegicus
Acaa2   acetyl-coenzyme a acyltransferase 2 (mitochondrial 3-oxoacyl-coenzyme a 
thiolase)       RG      Rattus norvegicus
Igfbp1  insulin-like growth factor binding protein 1    RG      Rattus 
norvegicus
Dlat    dihydrolipoamide s-acetyltransferase (e2 component of pyruvate 
dehydrogenase complex)   RG      Rattus norvegicus
Mdh1    malate dehydrogenase 1, nad (soluble)   RG      Rattus norvegicus
Pkm2    pyruvate kinase, muscle         RG      Rattus norvegicus
Man2b1  mannosidase 2, alpha b1         RG      Rattus norvegicus
Pcyt2   phosphate cytidylyltransferase 2, ethanolamine  RG      Rattus 
norvegicus
Aldh2   aldehyde dehydrogenase 2        RG      Rattus norvegicus
Ddc     dopa decarboxylase      RG      Rattus norvegicus
Prkaa1  protein kinase, amp-activated, alpha 1 catalytic subunit        RG      
Rattus norvegicus
Pdk2    pyruvate dehydrogenase kinase, isoenzyme 2      RG      Rattus 
norvegicus
Pmvk    phosphomevalonate kinase        RG      Rattus norvegicus
Mvd     mevalonate (diphospho) decarboxylase    RG      Rattus norvegicus
Ugp2    udp-glucose pyrophosphorylase 2         RG      Rattus norvegicus
Pctp    phosphatidylcholine transfer protein    RG      Rattus norvegicus
Atf3    activating transcription factor 3       RG      Rattus norvegicus
Dhtkd1  dehydrogenase e1 and transketolase domain containing 1  RG      Rattus 
norvegicus
Gata3   gata binding protein 3  RG      Rattus norvegicus
Ippk    similar to chromosome 9 open reading frame 12; 
1,3,4,5,6-pentakisphosphate 2-kinase     RG      Rattus norvegicus
Ywhah   tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein, 
eta polypeptide         RG      Rattus norvegicus
Aldh5a1         aldehyde dehydrogenase family 5, subfamily a1   RG      Rattus 
norvegicus
Hmgcs1  3-hydroxy-3-methylglutaryl-coenzyme a synthase 1        RG      Rattus 
norvegicus
Sult1b1         sulfotransferase family 1b, member 1    RG      Rattus 
norvegicus
Ugdh    udp-glucose dehydrogenase       RG      Rattus norvegicus
Hmgcs2  3-hydroxy-3-methylglutaryl-coenzyme a synthase 2        RG      Rattus 
norvegicus
Sec14l2         sec14-like 2 (s. cerevisiae)    RG      Rattus norvegicus
Gck     glucokinase     RG      Rattus norvegicus
Ch25h   cholesterol 25-hydroxylase      RG      Rattus norvegicus
Hsd17b7         hydroxysteroid (17-beta) dehydrogenase 7        RG      Rattus 
norvegicus
Crem    camp responsive element modulator       RG      Rattus norvegicus
Tat     tyrosine aminotransferase       RG      Rattus norvegicus
Ldha    lactate dehydrogenase a         RG      Rattus norvegicus
Coq7    demethyl-q 7    RG      Rattus norvegicus
genesymbol      geneDescription orgSymbol       orgName
E2f5     e2f transcription factor 5      RG      Rattus norvegicus
Aatf    apoptosis antagonizing transcription factor     RG      Rattus 
norvegicus
Numa1   nuclear mitotic apparatus protein 1     RG      Rattus norvegicus
RGD1305526_predicted    similar to sperm 1 pou-domain transcription factor 
(sprm-1) (predicted)         RG      Rattus norvegicus
Kpna2   karyopherin (importin) alpha 2  RG      Rattus norvegicus
Anapc4  anaphase promoting complex subunit 4    RG      Rattus norvegicus
Gtpbp4  gtp binding protein 4   RG      Rattus norvegicus
Mki67_predicted         antigen identified by monoclonal antibody ki-67 
(predicted)     RG      Rattus norvegicus
Brca1   hypothetical gene supported by nm_012514        RG      Rattus 
norvegicus
Cited2  cbp/p300-interacting transactivator, with glu/asp-rich carboxy-terminal 
domain, 2       RG      Rattus norvegicus
Rbl2    retinoblastoma-like 2   RG      Rattus norvegicus
Ppp2ca  protein phosphatase 2a, catalytic subunit, alpha isoform        RG      
Rattus norvegicus
Aurkb   aurora kinase b         RG      Rattus norvegicus
RGD1307084      family with sequence similarity 33, member a    RG      Rattus 
norvegicus
Brip1_predicted         brca1 interacting protein c-terminal helicase 1 
(predicted)     RG      Rattus norvegicus
Ccng2_predicted         cyclin g2 (predicted)   RG      Rattus norvegicus
Tgfb2   transforming growth factor, beta 2      RG      Rattus norvegicus
Tubg1   tubulin, gamma 1        RG      Rattus norvegicus
Gnl3    guanine nucleotide binding protein-like 3 (nucleolar)   RG      Rattus 
norvegicus
Keg1    kidney expressed gene 1         RG      Rattus norvegicus
Cgrrf1  cell growth regulator with ring finger domain 1         RG      Rattus 
norvegicus
Gtf2h1_predicted        general transcription factor ii h, polypeptide 1 
(predicted)    RG      Rattus norvegicus
Cetn3   centrin 3       RG      Rattus norvegicus
Mphosph1_predicted      m-phase phosphoprotein 1 (predicted)    RG      Rattus 
norvegicus
Prc1_predicted  protein regulator of cytokinesis 1 (predicted)  RG      Rattus 
norvegicus
Flcn    folliculin      RG      Rattus norvegicus
Map2k6  mitogen-activated protein kinase kinase 6       RG      Rattus 
norvegicus
Calr    calreticulin    RG      Rattus norvegicus
MGC112830       similar to transcription factor         RG      Rattus 
norvegicus
Fgf1    fibroblast growth factor 1      RG      Rattus norvegicus
Top3a_predicted         topoisomerase (dna) iii alpha (predicted)       RG      
Rattus norvegicus
Egfr    epidermal growth factor receptor        RG      Rattus norvegicus
Grlf1_predicted         glucocorticoid receptor dna binding factor 1 
(predicted)        RG      Rattus norvegicus
Itgb1   integrin beta 1 (fibronectin receptor beta)     RG      Rattus 
norvegicus
Dnaja2  dnaj (hsp40) homolog, subfamily a, member 2     RG      Rattus 
norvegicus
Cep55   similar to chromosome 10 open reading frame 3   RG      Rattus 
norvegicus
Dlg7_predicted  discs, large homolog 7 (drosophila) (predicted)         RG      
Rattus norvegicus
Pdgfc   platelet-derived growth factor, c polypeptide   RG      Rattus 
norvegicus
Npm1    nucleophosmin 1         RG      Rattus norvegicus
Lig3    ligase iii, dna, atp-dependent  RG      Rattus norvegicus
Psmd13_predicted        proteasome (prosome, macropain) 26s subunit, 
non-atpase, 13 (predicted)         RG      Rattus norvegicus
Ccnf    cyclin f        RG      Rattus norvegicus
Cenpf   centromere autoantigen f        RG      Rattus norvegicus
Ppp2cb  protein phosphatase 2a, catalytic subunit, beta isoform         RG      
Rattus norvegicus
Rad51l3_predicted       rad51-like 3 (s. cerevisiae) (predicted)        RG      
Rattus norvegicus
Ccng1   cyclin g1       RG      Rattus norvegicus
Btg3    b-cell translocation gene 3     RG      Rattus norvegicus
Gmnn_predicted  geminin (predicted)     RG      Rattus norvegicus
Gspt1   g1 to s phase transition 1      RG      Rattus norvegicus
Cdc27   cell division cycle 27 homolog (s. cerevisiae)  RG      Rattus 
norvegicus
Wee1    wee 1 homolog (s. pombe)        RG      Rattus norvegicus
Ccnb2   cyclin b2       RG      Rattus norvegicus
Nde1    nuclear distribution gene e homolog 1 (a nidulans)      RG      Rattus 
norvegicus
Ranbp1_predicted        ran binding protein 1 (predicted)       RG      Rattus 
norvegicus
Ptpn11  protein tyrosine phosphatase, non-receptor type 11      RG      Rattus 
norvegicus
Ccdc5   coiled-coil domain containing 5         RG      Rattus norvegicus
Prmt5_predicted         skb1 homolog (s. pombe) (predicted)     RG      Rattus 
norvegicus
RGD1309522      similar to hypothetical protein flj22624        RG      Rattus 
norvegicus
Nek2    nima (never in mitosis gene a)-related expressed kinase 2       RG      
Rattus norvegicus
Junb    jun-b oncogene  RG      Rattus norvegicus
Cdc25c_predicted        cell division cycle 25 homolog c (s. cerevisiae) 
(predicted)    RG      Rattus norvegicus
Kntc1_predicted         kinetochore associated 1 (predicted)    RG      Rattus 
norvegicus
Plk1    polo-like kinase 1 (drosophila)         RG      Rattus norvegicus
Inhba   inhibin beta-a  RG      Rattus norvegicus
Rad1_predicted  rad1 homolog (s. pombe) (predicted)     RG      Rattus 
norvegicus
Ccne1   cyclin e        RG      Rattus norvegicus
Kif22   kinesin family member 22        RG      Rattus norvegicus
Gadd45g         growth arrest and dna-damage-inducible 45 gamma         RG      
Rattus norvegicus
Sugt1   sgt1, suppressor of g2 allele of skp1 (s. cerevisiae)   RG      Rattus 
norvegicus
Cdkn3_predicted         cyclin-dependent kinase inhibitor 3 (predicted)         
RG      Rattus norvegicus
Pbk_predicted   pdz binding kinase (predicted)  RG      Rattus norvegicus
Pttg1   pituitary tumor-transforming 1  RG      Rattus norvegicus
Kif11   kinesin-like 1  RG      Rattus norvegicus
Ccnd1   cyclin d1       RG      Rattus norvegicus
Casp3   caspase 3, apoptosis related cysteine protease  RG      Rattus 
norvegicus
Rpa1    replication protein a1  RG      Rattus norvegicus
Bccip_predicted         brca2 and cdkn1a interacting protein (predicted)        
RG      Rattus norvegicus
genesymbol      geneDescription orgSymbol       orgName
Adh7     alcohol dehydrogenase 7 (class iv), mu or sigma polypeptide     RG     
 Rattus norvegicus
Adh1    alcohol dehydrogenase 1         RG      Rattus norvegicus
Adh4    alcohol dehydrogenase 4 (class ii), pi polypeptide      RG      Rattus 
norvegicus
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