#! /usr/bin/python2.7 # Variant of "which". # On stderr, near and total misses are reported. # '-l' argument adds ls -l of each file found. import sys if sys.path[0] in (".", ""): del sys.path[0] import sys, os from stat import * def msg(str): sys.stderr.write(str + '\n') def main(): pathlist = os.environ['PATH'].split(os.pathsep) sts = 0 longlist = '' if sys.argv[1:] and sys.argv[1][:2] == '-l': longlist = sys.argv[1] del sys.argv[1] for prog in sys.argv[1:]: ident = () for dir in pathlist: filename = os.path.join(dir, prog) try: st = os.stat(filename) except os.error: continue if not S_ISREG(st[ST_MODE]): msg(filename + ': not a disk file') else: mode = S_IMODE(st[ST_MODE]) if mode & 0111: if not ident: print filename ident = st[:3] else: if st[:3] == ident: s = 'same as: ' else: s = 'also: ' msg(s + filename) else: msg(filename + ': not executable') if longlist: sts = os.system('ls ' + longlist + ' ' + filename) if sts: msg('"ls -l" exit status: ' + repr(sts)) if not ident: msg(prog + ': not found') sts = 1 sys.exit(sts) if __name__ == '__main__': main()