ОС Лаб5

#!/usr/bin/python
# Print the contents of the files listed on the command line.
import sys, os
from string import *
if len(sys.argv) == 1:
    sys.exit("Usage: "+sys.argv[0]+" files...");
for fn in sys.argv[1:]:
    fin = open(fn, 'r')
    filename = find(fn, '.')
    if filename != -1:
        fn = fn[0:filename] + ".tsv"
    fin2 = open(fn, 'w')
    while 1:
        line = fin.readline().rstrip()
        if not line: break;
        parts = split(line, ',')
        newline = ""
        for part in parts[0:]:
            newline = newline + part + "\t"
        newline = newline + "\n"
        fin2.write(newline)
    fin.close()
    fin2.close()


######### vtora zadaca

#!/usr/bin/python
import sys, os, glob
from string import *
totalka = 0
files = glob.glob('*.py')
files += glob.glob('*.sh')
for file in files[0:]:
    #print str(os.stat(file).st_size) + " za " + file
    totalka += os.stat(file).st_size
print totalka

######### treta zadaca

#!/usr/bin/python
import sys, os, glob
from string import *

if len(sys.argv) == 1:
    sys.exit("Usage: "+sys.argv[0]+" files...");
mapa = {}
for fn in sys.argv[1:]:
    fin = open(fn, 'r')
    while 1:
        line = fin.readline().rstrip()
        if not line: break;
        line = line.replace(".", "")
        line = line.replace(",", "")
        line = line.replace("!", "")
        line = line.replace(";", "")
        line = line.replace("\t", "")
        line = line.replace("?", "")
        parts = split(line, ' ')
        for part in parts[0:]:
            part = part.upper();
            if len(part.) > 3:
                if mapa.has_key(part):
                    mapa[part]+=1;
                else:
                    mapa[part]=1

    fin.close()
for key, value in sorted(mapa.iteritems(), key=lambda (k,v): (v,k), reverse=True):
    print "%s: %s" % (key, value)




######### cetvrta zadaca

#!/usr/bin/python
import sys, os, glob
from string import *
brojnapredmeti=0
predmeti = []
pprosek = {}
fin = open("rezultati.txt", 'r')
line = fin.readline().rstrip()
if not line: sys.exit("Prazen fajl!");
parts = split(line, '\t')
for part in parts[1:]:
    predmeti.append(part)
    brojnapredmeti+=1
    pprosek[part] = 0
print "Rabotime so slednive predmeti:"
print predmeti
brojnastudenti=0
tmpprosek=0
while 1:
    line = fin.readline().rstrip()
    if not line: break;
    brojnastudenti+=1
    tmpprosek=0
    brojac=0
    parts = split(line, '\t')
    for part in parts[1:]:
        pprosek[predmeti[brojac]]+=int(part)
        tmpprosek+=int(part)
        brojac+=1
    odnos = (tmpprosek*1.0)/brojnapredmeti
    print parts[0] + " ima prosek: " + str(odnos)
print
print "Prosek za predmeti:"
for predmet in predmeti[0:]:
    tmpprosek = (pprosek[predmet]*1.0)/brojnastudenti
    print predmet + ": " + str(tmpprosek)