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sudancam
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usr
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lib64
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tcl8.5
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..
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python2.7
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commands.py
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/
"""Execute shell commands via os.popen() and return status, output. Interface summary: import commands outtext = commands.getoutput(cmd) (exitstatus, outtext) = commands.getstatusoutput(cmd) outtext = commands.getstatus(file) # returns output of "ls -ld file" A trailing newline is removed from the output string. Encapsulates the basic operation: pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r') text = pipe.read() sts = pipe.close() [Note: it would be nice to add functions to interpret the exit status.] """ from warnings import warnpy3k warnpy3k("the commands module has been removed in Python 3.0; " "use the subprocess module instead", stacklevel=2) del warnpy3k __all__ = ["getstatusoutput","getoutput","getstatus"] # Module 'commands' # # Various tools for executing commands and looking at their output and status. # # NB This only works (and is only relevant) for UNIX. # Get 'ls -l' status for an object into a string # def getstatus(file): """Return output of "ls -ld <file>" in a string.""" import warnings warnings.warn("commands.getstatus() is deprecated", DeprecationWarning, 2) return getoutput('ls -ld' + mkarg(file)) # Get the output from a shell command into a string. # The exit status is ignored; a trailing newline is stripped. # Assume the command will work with '{ ... ; } 2>&1' around it.. # def getoutput(cmd): """Return output (stdout or stderr) of executing cmd in a shell.""" return getstatusoutput(cmd)[1] # Ditto but preserving the exit status. # Returns a pair (sts, output) # def getstatusoutput(cmd): """Return (status, output) of executing cmd in a shell.""" import os pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r') text = pipe.read() sts = pipe.close() if sts is None: sts = 0 if text[-1:] == '\n': text = text[:-1] return sts, text # Make command argument from directory and pathname (prefix space, add quotes). # def mk2arg(head, x): import os return mkarg(os.path.join(head, x)) # Make a shell command argument from a string. # Return a string beginning with a space followed by a shell-quoted # version of the argument. # Two strategies: enclose in single quotes if it contains none; # otherwise, enclose in double quotes and prefix quotable characters # with backslash. # def mkarg(x): if '\'' not in x: return ' \'' + x + '\'' s = ' "' for c in x: if c in '\\$"`': s = s + '\\' s = s + c s = s + '"' return s
/home/sudancam/../../usr/lib64/tcl8.5/../python2.7/commands.py