Shell Programming and Scripting

gawk 'BEGIN{
     for(i=1;i<=ARGC;i++){
        printf "%s\t", ARGV[i]
     }
}
FNR==1{print ""}
{
    gsub(/\r\n/,"")
    printf "%s\t%s " ,$1,$2
}' file*

800.000000	-0.055621 799.000000	-0.055739 798.000000	-0.055475 797.000000	-0.055687 	 
800.000000	-0.052849 799.000000	-0.053105 798.000000	-0.052550 797.000000	-0.052766 	 
800.000000	-0.054032 799.000000	-0.053876 798.000000	-0.053918 797.000000	-0.054031

gawk '
{
    o=$1; $1=""
    a[o]=a[o]"\t"$0
}END{ for (i in a) print i,a[i] } ' file*

awk '{A[FNR]=(NR==FNR)?$0:A[FNR]"\t"$2} END{for(i=1;i<=FNR;i++) print A[i]}' file*

import glob
import os
import operator
hash={}
d=0
for file in glob.glob("file*"):
    for n,line in enumerate(open(file)):
        line=line.rstrip()
        sl=line.split()
        if not sl[0] in hash: d+=1
        hash.setdefault(sl[0],[d])
        hash[sl[0]].append(sl[-1])

for i in sorted(hash.iteritems(), key=operator.itemgetter(1)):
    print "%s\t%s" % ( i[0],'\t'.join(i[1][1:]))

$ ./python.py
800.000000      -0.060552       0.000261        0.002744
799.000000      -0.060650       0.000001        0.002517
798.000000      -0.060206       0.000551        0.002836
797.000000      -0.060329       0.000275        0.002553