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How to use _shell_soe method in fMBT

Best Python code snippet using fMBT_python
pycosh.py
Source:pycosh.py
...76def _output(s):77    sys.stdout.write(s)78    sys.stdout.write("\n")79    sys.stdout.flush()80def _shell_soe(cmd):81    try:82        p = subprocess.Popen(cmd, shell=True,83                             stdin=subprocess.PIPE,84                             stdout=subprocess.PIPE,85                             stderr=subprocess.PIPE)86        out, err = p.communicate()87        status = p.returncode88    except OSError:89        status, out, err = None, None, None90    if out != None and sys.stdout.encoding:91        out = out.decode(sys.stdout.encoding).encode("utf-8")92    if err != None and sys.stderr.encoding:93        err = err.decode(sys.stderr.encoding).encode("utf-8")94    return status, out, err95def cmd2py(cmdline):96    if "|" in cmdline:97        cmd_left, cmd_right = cmdline.split("|", 1)98        funccall = "pipe(%s, %s)" % (repr(cmd2py(cmd_left)),99                                     repr(cmd2py(cmd_right)))100    elif ">" in cmdline:101        cmd_left, filename = cmdline.split(">", 1)102        funccall = "pipe(%s, %s)" % (103            repr(cmd2py(cmd_left)),104            repr("redir('%s')" % (filename.strip(),)))105    else:106        cmdline_list = shlex.split(cmdline.strip())107        funcname = cmdline_list[0]108        args = cmdline_list[1:]109        funccall = funcname + repr(tuple(args))110    return funccall111def prompt():112    """prompt113    print prompt"""114    try:115        user = getpass.getuser()116    except Exception:117        user = ""118    try:119        hostname = socket.gethostname()120    except Exception:121        hostname = ""122    return (user + "@" +123            hostname + ":" +124            os.getcwd() + ": ")125def awk(prog, *args):126    """awk PROG [FILE...]127    PROG syntax: [/REGEXP/]{print $N...}"""128    filenames = expand(*args, accept_pipe=True).splitlines()129    if not filenames:130        raise ValueError("missing input")131    rv = []132    awk_syntax = re.compile('(/([^/]*)/)?\{([^}]*)\}')133    parsed_prog = awk_syntax.match(prog)134    if not parsed_prog:135        raise ValueError('syntax error in awk program')136    awk_pattern = parsed_prog.group(2)137    if not awk_pattern is None:138        awk_pattern_re = re.compile(awk_pattern)139    else:140        awk_pattern_re = re.compile("")141    awk_statements = [s.strip() for s in parsed_prog.group(3).split(";")]142    awk_fieldno_re = re.compile("\$([0-9]+)")143    awk_fieldsep_re = re.compile("[ \n\t\r]*")144    for filename in filenames:145        for line in open(filename).xreadlines():146            if awk_pattern_re.search(line):147                for stmt in awk_statements:148                    if stmt.startswith("print"):149                        what = stmt[5:].strip()150                        if not what:151                            # plain "print" results in full line152                            what = "$0"153                        else:154                            # no variable handling for now...155                            what = what.replace('"', '')156                        fields = [int(n) for n in awk_fieldno_re.findall(what)]157                        translate = {}158                        if fields:159                            line_fields = [line.splitlines()[0]] + [160                                l for l in awk_fieldsep_re.split(line) if l]161                            for field in fields:162                                if field < len(line_fields):163                                    translate["$" + str(field)] = line_fields[field]164                                else:165                                    translate["$" + str(field)] = ""166                            for rep in reversed(sorted(translate.keys())):167                                # if not reversed, might replace $1 before $10168                                what = what.replace(rep, translate[rep])169                        rv.append(what)170    return "\n".join(rv)171def cd(dirname):172    """cd DIRNAME173    change current working directory"""174    d = expand(dirname, accept_pipe=False, min=1, exist=True).splitlines()175    if len(d) > 1:176        raise ValueError("unambiguous directory name")177    os.chdir(os.path.join(os.getcwd(), d[0]))178    return ""179def curl(*args):180    """curl [-x P][-o FILE] URL181    download URL (use proxy P), save to FILE"""182    opts, urls = _getopts(args, "x:o:")183    rv = []184    if not urls:185        raise ValueError("missing URL(s)")186    if "-x" not in opts and "http_proxy" in _g_pyenv:187        opts["-x"] = _g_pyenv.get("http_proxy")188    if "-x" in opts:189        proxy = urllib2.ProxyHandler({190            'http': opts["-x"],191            'https': opts["-x"],192            'ftp': opts["-x"]})193    else:194        proxy = urllib2.ProxyHandler({})195    opener = urllib2.build_opener(proxy)196    urllib2.install_opener(opener)197    for url in urls:198        data = urllib2.urlopen(url).read()199        if "-o" in opts:200            _file(opts["-o"], "a").write(data)201        else:202            rv.append(data)203    return "".join(rv)204def find(*args):205    """find [-n FILE] DIR206    find file(s) in directory"""207    opts, remainder = _getopts(args, "n:")208    if not remainder:209        raise ValueError("missing DIR")210    dirname = remainder[0]211    if "-n" in opts:212        findname = opts["-n"]213    else:214        findname = "*"215    dirname_ends_with_sep = dirname[-1] in ["/", "\\"]216    slash_only = not "\\" in dirname217    if slash_only:218        sep = "/"219    else:220        sep = os.path.sep221    rv = []222    # DIR + NAME forms a path without duplicate path separators223    for root, dirs, files in os.walk(dirname):224        if slash_only:225            root = root.replace("\\", "/")226        for name in dirs + files:227            if fnmatch.fnmatch(name, findname):228                if root == dirname:229                    if dirname_ends_with_sep:230                        rv.append(name)231                    else:232                        rv.append(sep + name)233                else:234                    rv.append(root[len(dirname):] + sep + name)235    return "\n".join(rv)236def date():237    """date238    print current date and time"""239    t = datetime.datetime.now()240    return t.strftime("%Y-%m-%d %H:%M:%S.") + str(t.microsecond)241def diff(*args):242    """diff FILE1 FILE2243    print differences between two files"""244    files = expand(*args).splitlines()245    try:246        file1, file2 = files247    except Exception:248        raise ValueError("exactly two files required")249    lines1 = _file(file1).readlines()250    lines2 = _file(file2).readlines()251    udiff = difflib.unified_diff(lines1, lines2, file1, file2)252    # append endlines to lines where it is missing253    difflines = [l + ["", "\n"][l[-1] != "\n"] for l in udiff]254    return "".join(difflines)255def du(*args):256    """du [-h] FILE...257    print [human readable] disk usage of FILEs"""258    opts, filenames = _getopts(args, "h")259    if "-h" in opts:260        size_formatter = _human_readable_size261    else:262        size_formatter = lambda size: str(size)263    filenames = expand(*filenames, accept_pipe=False, min=1).splitlines()264    total_size = 0265    retval = []266    for direntry in filenames:267        size = None268        if os.path.isdir(direntry):269            for root, dirs, filelist in os.walk(direntry):270               for filename in filelist:271                   fullname = os.path.join(root, filename)272                   size = os.stat(fullname).st_size273                   retval.append("%-8s %s" % (size_formatter(size), fullname))274                   total_size += size275        elif os.path.isfile(direntry):276            size = os.stat(direntry).st_size277            total_size += size278            retval.append("%-8s %s" % (size_formatter(size), direntry))279    retval.append(size_formatter(total_size))280    return "\n".join(retval)281def echo(*args):282    return " ".join(args)283def env():284    """env285    print environment variables"""286    rv = []287    for key in sorted(_g_pyenv.keys()):288        rv.append("%s=%s" % (key, repr(_g_pyenv[key])))289    return "\n".join(rv)290def expand(*filenames, **kwargs):291    accept_pipe = kwargs.get("accept_pipe", True)292    min_count = kwargs.get("min", 0)293    must_exist = kwargs.get("exist", False)294    rv = []295    if not filenames:296        if accept_pipe and _g_pipe_has_data:297            rv.append(_g_pipe_filename)298    else:299        for pattern in filenames:300            extends_to = glob.glob(pattern)301            if extends_to:302                for filepath in extends_to:303                    if "/" in filepath and "\\" in filepath:304                        filepath = filepath.replace('\\', '/')305                    rv.append(filepath)306            elif not must_exist:307                rv.append(pattern)308    if not min_count <= len(rv):309        raise ValueError("expected at least %s file(s), got %s" %310                         (min_count, len(rv)))311    return "\n".join(rv)312def export(assignment):313    """export VAR=VALUE314    assign VALUE to environment variable VAR"""315    if not "=" in assignment or not assignment.split("=")[0].strip():316        raise ValueError("expected VAR=VALUE")317    _g_pyenv.__setitem__(*assignment.split("=", 1))318    return ""319def grep(pattern, *filenames):320    """grep PATTERN [FILE...]321    show matching lines in file(s)"""322    matching_lines = []323    all_files = expand(*filenames).splitlines()324    for filename in all_files:325        for line in file(filename).xreadlines():326            if pattern in line:327                matching_lines.append(line)328    return "".join(matching_lines)329def head(*args):330    """head [-n NUM] [FILE...]331    show first NUM lines in file(s)"""332    opts, filenames = _getopts(args, "n:")333    all_files = expand(*filenames).splitlines()334    if "-n" in opts:335        lines = int(opts["-n"])336    else:337        lines = 10338    rv = []339    for filename in all_files:340        line_count = 0341        for line in file(filename).xreadlines():342            line_count += 1343            if line_count > lines:344                break345            rv.append(line)346    return "".join(rv)347def help(func=None):348    """help [COMMAND]349    print help (on COMMAND)"""350    if not func:351        rv = []352        for c in globals().keys():353            if c.startswith("_"):354                continue355            if not isinstance(globals()[c], types.FunctionType):356                continue357            if not globals()[c].__doc__:358                continue359            if len(globals()[c].__doc__.splitlines()) != 2:360                continue361            rv.append("%-26s%s" %362                      tuple([l.strip() for l in363                             globals()[c].__doc__.splitlines()]))364        rv = sorted(rv)365    elif isinstance(globals().get(func, None), types.FunctionType):366        rv = inspect.getsource(globals().get(func)).splitlines()367    return "\n".join(rv)368def kill(*pids):369    """kill PID...370    terminate processes"""371    for pid in pids:372        os.kill(int(pid), signal.SIGTERM)373    return ""374def ls(*args):375    """ls [-l]376    list files on current working directory"""377    opts, filenames = _getopts(args, "l")378    if filenames:379        files = sorted([f for f in expand(*filenames, exist=True).splitlines()])380    else:381        _, subdirs, files = os.walk(".").next()382        files = sorted([d + "/" for d in subdirs]) + sorted(files)383    if "-l" in opts:384        rv = []385        for f in files:386            fstat = os.stat(f)387            rv.append("%10s  %s  %s" % (388                fstat.st_size,389                time.strftime("%Y-%m-%d %H:%M", time.localtime(fstat.st_mtime)),390                f))391    else:392        rv = files393    return "\n".join(rv)394def nl(*filenames):395    """nl FILE...396    number lines"""397    all_files = expand(*filenames).splitlines()398    rv = []399    line_no = 0400    for filename in all_files:401        for line in file(filename).xreadlines():402            line_no += 1403            rv.append("%5s  %s" % (line_no, line))404    return "".join(rv)405def mkdir(*args):406    """mkdir [-p] DIRNAME...407    make directories, -p: intermediates if necessary"""408    args, dirnames = _getopts(args, "-p")409    for dirname in dirnames:410        if "-p" in args:411            os.makedirs(dirname)412        else:413            os.mkdir(dirname)414    return ""415def redir(dst_filename):416    # redirect data from input pipe to a file417    src_filename = expand(accept_pipe=True)418    if src_filename:419        file(dst_filename, "wb").write(420            file(src_filename, "rb").read())421    return ""422def rm(*args):423    """rm [-r] FILE...424    remove file"""425    args, filenames = _getopts(args, "-r")426    filenames = expand(*filenames, accept_pipe=False, min=1).splitlines()427    for filename in filenames:428        if "-r" in args and os.path.isdir(filename):429            shutil.rmtree(filename)430        else:431            os.remove(filename)432    return ""433def rmdir(dirname):434    """rmdir DIRNAME435    remove directory"""436    os.rmdir(dirname)437    return ""438def cat(*filenames):439    """cat FILE...440    concatenate contents of listed files"""441    return "".join([file(f).read() for f in expand(*filenames).splitlines()])442def df(*args):443    """df [-h] DIRNAME444    print [human readable] free space on DIRNAME"""445    args, dirnames = _getopts(args, "-h")446    if "-h" in args:447        human_readable = True448    else:449        human_readable = False450    try:451        dirname = dirnames[0]452    except IndexError:453        raise Exception("directory name missing")454    if os.name == "nt": # Windows455        cfree = ctypes.c_ulonglong(0)456        ctypes.windll.kernel32.GetDiskFreeSpaceExW(457            ctypes.c_wchar_p(dirname), None, None,458            ctypes.byref(cfree))459        free = cfree.value460    else:  # Posix461        st = os.statvfs(dirname)462        free = st.f_bavail * st.f_frsize463    if human_readable:464        retval = _human_readable_size(free)465    else:466        retval = str(free)467    return retval468def md5sum(*filenames):469    """md5sum FILE...470    print MD5 (128-bit) checksums."""471    rv = []472    for filename in expand(*filenames).splitlines():473        rv.append("%-34s%s" %474                  (md5.md5(file(filename, "rb").read()).hexdigest(),475                   filename))476    return "\n".join(rv)477def mv(src, dst):478    """mv SOURCE DEST479    move file or directory to destination"""480    shutil.move(src, dst)481    return ""482def cp(src, dst):483    """cp SOURCE DEST484    copy file or directory to destination"""485    shutil.copy(src, dst)486    return ""487def pipe(expr_left, expr_right):488    global _g_pipe_has_data489    try:490        pipe_in_data = eval(expr_left)491        file(_g_pipe_filename, "wb").write(pipe_in_data)492        del pipe_in_data493        _g_pipe_has_data = True494        rv = eval(expr_right)495    finally:496        try:497            os.remove(_g_pipe_filename)498        except Exception:499            pass500        _g_pipe_has_data = False501    return rv502def ps(*args):503    """ps [-v] [PID...]504    list processes (-v virtual memory)"""505    args, pids = _getopts(args, "-v")506    rv = []507    pids = set(pids)508    if os.name == "nt":509        if "-v" in args:510            opt_field = "PageFileUsage"511        else:512            opt_field = "parentprocessid"513        _, o, _ = _shell_soe(514            "wmic process get %s,processid,description,commandline" %515            (opt_field,))516        for line in o.splitlines():517            try:518                cmd_desc_almostlast, lastfield = line.rstrip().rsplit(" ", 1)519                cmd_desc, almostlast = (520                    cmd_desc_almostlast.rstrip().rsplit(" ", 1))521                cmd, desc = cmd_desc.rstrip().rsplit(" ", 1)522                if opt_field == "PageFileUsage":523                    pid = lastfield524                    pdata = almostlast # PageFileUsage525                else:526                    pid = lastfield527                    pdata = almostlast # parent pid528                if not desc.lower() in cmd.strip().lower():529                    cmd = "[%s] %s" % (desc.strip(), cmd.strip())530                if not pids or pid in pids:531                    rv.append("%8s %8s %s" %532                              (pid.strip(), pdata.strip(), cmd.strip()))533            except Exception:534                pass535    else:536        if "-v" in args:537            opt_field = "size"538        else:539            opt_field = "ppid"540        _, o, _ = _shell_soe("ps ax -o%s,pid,cmd" % (opt_field,))541        for line in o.splitlines():542            pdata, pid, cmd = line.strip().split(None, 2)543            if not pids or pid in pids:544                rv.append("%8s %8s %s" % (pid, pdata, cmd.strip()))545    return "\n".join(rv)546def psh(*cmd):547    """psh COMMAND548    run COMMAND in powershell (Windows)"""549    _, o, e = _shell_soe(550        ("powershell.exe",) + cmd)551    return o + e552_g_pspycosh_conn = None553def pspycosh(psconn):554    """pspycosh HOSTSPEC555    open pycosh shell on a pythonshare server"""556    global _g_pspycosh_conn557    if isinstance(psconn, pythonshare.client.Connection):558        _g_pspycosh_conn = psconn559    else:560        _g_pspycosh_conn = pythonshare.connect(psconn)561    _g_pspycosh_conn.exec_(_g_pycosh_source)562    return ""563def psput(psconn, pattern):564    """psput CONNSPEC FILE...565    upload files to pythonshare server"""566    if isinstance(psconn, pythonshare.client.Connection):567        conn = psconn568        close_connection = False569    else:570        conn = pythonshare.connect(psconn)571        close_connection = True572    conn.exec_("import base64")573    rv = []574    for filename in expand(pattern, accept_pipe=False).splitlines():575        data = file(filename).read()576        conn.eval_('file(%s, "wb").write(base64.b64decode(%s))' %577                   (repr(os.path.basename(filename)),578                    repr(base64.b64encode(data))))579        rv.append(filename)580    if close_connection:581        conn.close()582    return "\n".join(rv)583def psget(psconn, pattern):584    """psget CONNSPEC FILE...585    download files from pythonshare server"""586    if isinstance(psconn, pythonshare.client.Connection):587        conn = psconn588        close_connection = False589    else:590        conn = pythonshare.connect(psconn)591        close_connection = True592    conn.exec_("".join(inspect.getsourcelines(expand)[0]))593    conn.exec_("import glob")594    rv = []595    for filename in conn.eval_('expand(%s, accept_pipe=False)' %596                               repr(pattern)).splitlines():597        file(os.path.basename(filename), "w").write(598            conn.eval_("file(%s, 'rb').read()" % (repr(filename),)))599        rv.append(filename)600    return "\n".join(rv)601def pwd():602    """pwd603    print current working directory"""604    return os.getcwd()605def pye(*code):606    """pye CODE607    evaluate Python CODE"""608    code = " ".join(code)609    if _g_pipe_has_data:610        _g_pyenv["pipe_in"] = file(expand(accept_pipe=True), "rb")611    try:612        return str(eval(code, globals(), _g_pyenv))613    finally:614        if "pipe_in" in _g_pyenv:615            del _g_pyenv["pipe_in"]616def pyx(*code):617    """pyx CODE618    execute Python CODE"""619    code = " ".join(code)620    if _g_pipe_has_data:621        _g_pyenv["pipe_in"] = file(expand(accept_pipe=True), "rb")622    try:623        try:624            exec code in globals(), _g_pyenv625        except Exception, e:626            return str(e)627    finally:628        if "pipe_in" in _g_pyenv:629            del _g_pyenv["pipe_in"]630    return ""631def sed(cmd, *filenames):632    """sed s/P/R[/N] [FILE]633    replace P with R in FILE"""634    rv = []635    try:636        pattern, repl, count = re.findall("s/([^/]*)/([^/]*)/(.*)", cmd)[0]637        pattern = re.compile(pattern)638    except:639        raise ValueError('invalid command "%s"' % (cmd,))640    all_files = expand(*filenames).splitlines()641    for filename in all_files:642        for line in file(filename).readlines():643            try:644                count_arg = (int(count),)645            except:646                if count == "g":647                    count_arg = ()648                elif count == "":649                    count_arg = (1,)650                else:651                    raise ValueError('invalid count: "%s"' % (count,))652            rv.append(re.subn(* ((pattern, repl, line) + count_arg))[0])653    return "".join(rv)654def sh(*cmd):655    """sh COMMAND656    run COMMAND in shell"""657    s, o, e = _shell_soe(" ".join(cmd))658    return "[exit status: %s]\n%s" % (s, o+e)659def sleep(seconds):660    """sleep SECONDS661    sleep for SECONDS (float)"""662    time.sleep(float(seconds))663    return ""664def sort(*args):665    """sort [-n] [-k N] [FILE]666    sort lines [numerically] according to column N"""667    opts, filenames = _getopts(args, "k:n")668    filenames = expand(*filenames, accept_pipe=True).splitlines()669    rv = []670    for filename in filenames:671        lines = [[l.split(), l] for l in file(filename).readlines()]672        if "-k" in opts:673            k = int(opts["-k"]) - 1674            for line in lines:675                line[0][0], line[0][k] = line[0][k], line[0][0]676        if "-n" in opts:677            for line in lines:678                try:679                    line[0][0] = int(line[0][0])680                except:681                    pass682        lines.sort()683        rv.extend([line[1] for line in lines])684    return "".join(rv)685def sync():686    """sync687    flush system write back caches"""688    if os.name == "nt":689        retval = str(ctypes.windll.kernel32.SetSystemFileCacheSize(-1, -1, 0))690    else:691        _, _, retval = _shell_soe("sync")692    return retval693def tail(*args):694    """tail [-n NUM] [FILE...]695    show last NUM lines in file(s)"""696    opts, filenames = _getopts(args, "n:")697    all_files = expand(*filenames).splitlines()698    if "-n" in opts:699        lines = int(opts["-n"])700    else:701        lines = 10702    rv = []703    if lines > 0:704        for filename in all_files:705            rv.extend(file(filename).readlines()[-lines:])...
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