1 #! /usr/bin/env python 2 3 # Variant of "which". 4 # On stderr, near and total misses are reported. 5 # '-l<flags>' argument adds ls -l<flags> of each file found. 6 7 import sys 8 if sys.path[0] in (".", ""): del sys.path[0] 9 10 import sys, os 11 from stat import * 12 13 def msg(str): 14 sys.stderr.write(str + '\n') 15 16 def main(): 17 pathlist = os.environ['PATH'].split(os.pathsep) 18 19 sts = 0 20 longlist = '' 21 22 if sys.argv[1:] and sys.argv[1][:2] == '-l': 23 longlist = sys.argv[1] 24 del sys.argv[1] 25 26 for prog in sys.argv[1:]: 27 ident = () 28 for dir in pathlist: 29 filename = os.path.join(dir, prog) 30 try: 31 st = os.stat(filename) 32 except os.error: 33 continue 34 if not S_ISREG(st[ST_MODE]): 35 msg(filename + ': not a disk file') 36 else: 37 mode = S_IMODE(st[ST_MODE]) 38 if mode & 0111: 39 if not ident: 40 print filename 41 ident = st[:3] 42 else: 43 if st[:3] == ident: 44 s = 'same as: ' 45 else: 46 s = 'also: ' 47 msg(s + filename) 48 else: 49 msg(filename + ': not executable') 50 if longlist: 51 sts = os.system('ls ' + longlist + ' ' + filename) 52 if sts: msg('"ls -l" exit status: ' + repr(sts)) 53 if not ident: 54 msg(prog + ': not found') 55 sts = 1 56 57 sys.exit(sts) 58 59 if __name__ == '__main__': 60 main() 61
