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Kirill Smelkov
cpython
Commits
e04563e6
Commit
e04563e6
authored
Mar 11, 1998
by
Fred Drake
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Plain Diff
Logical markup.
parent
24e92084
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Doc/lib/libcommands.tex
Doc/lib/libcommands.tex
+18
-17
Doc/libcommands.tex
Doc/libcommands.tex
+18
-17
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Doc/lib/libcommands.tex
View file @
e04563e6
...
@@ -2,34 +2,35 @@
...
@@ -2,34 +2,35 @@
\stmodindex
{
commands
}
\stmodindex
{
commands
}
\label
{
module-commands
}
\label
{
module-commands
}
The
\code
{
commands
}
module contains wrapper functions for
\code
{
os.popen()
}
The
\module
{
commands
}
module contains wrapper functions for
which take a system command as a string and return any output generated by
\function
{
os.popen()
}
which take a system command as a string and
the command and, optionally, the exit status.
return any output generated by the command and, optionally, the exit
status.
The
\code
{
commands
}
module is only usable on systems which support
The
\module
{
commands
}
module is only usable on systems which support
\code
{
popen()
}
(currently
\UNIX
{}
).
\function
{
os.popen()
}
(currently
\UNIX
{}
). It defines the following
functions:
The
\code
{
commands
}
module defines the following functions:
\setindexsubitem
{
(in module commands)
}
\begin{funcdesc}
{
getstatusoutput
}{
cmd
}
\begin{funcdesc}
{
getstatusoutput
}{
cmd
}
Execute the string
\var
{
cmd
}
in a shell with
\code
{
os.popen()
}
and return
Execute the string
\var
{
cmd
}
in a shell with
\function
{
os.popen()
}
and
a 2-tuple (status, output).
\var
{
cmd
}
is actually run as
return a 2-tuple
\code
{
(
\var
{
status
}
,
\var
{
output
}
)
}
.
\var
{
cmd
}
is
\code
{
\{
cmd ;
\}
2>
\&
1
}
, so that the returned output will contain output
actually run as
\code
{
\{
\var
{
cmd
}
;
\}
2>
\&
1
}
, so that the returned
or error messages. A trailing newline is stripped from the output.
output will contain output or error messages. A trailing newline is
The exit status for the command can be interpreted according to the
stripped from the output. The exit status for the command can be
rules for the
\C
{}
function
\code
{
wait()
}
.
interpreted according to the rules for the
\C
{}
function
\cfunction
{
wait()
}
.
\end{funcdesc}
\end{funcdesc}
\begin{funcdesc}
{
getoutput
}{
cmd
}
\begin{funcdesc}
{
getoutput
}{
cmd
}
Like
\
code
{
getstatusoutput()
}
, except the exit status is ignored an
d
Like
\
function
{
getstatusoutput()
}
, except the exit status is ignore
d
the return value is a string containing the command's output.
and
the return value is a string containing the command's output.
\end{funcdesc}
\end{funcdesc}
\begin{funcdesc}
{
getstatus
}{
file
}
\begin{funcdesc}
{
getstatus
}{
file
}
Return the output of
\samp
{
ls -ld
\var
{
file
}}
as a string. This
Return the output of
\samp
{
ls -ld
\var
{
file
}}
as a string. This
function uses the
\
code
{
getoutput()
}
function, and properly escapes
function uses the
\
function
{
getoutput()
}
function, and properly
backslashes and dollar signs in the argument.
escapes
backslashes and dollar signs in the argument.
\end{funcdesc}
\end{funcdesc}
Example:
Example:
...
...
Doc/libcommands.tex
View file @
e04563e6
...
@@ -2,34 +2,35 @@
...
@@ -2,34 +2,35 @@
\stmodindex
{
commands
}
\stmodindex
{
commands
}
\label
{
module-commands
}
\label
{
module-commands
}
The
\code
{
commands
}
module contains wrapper functions for
\code
{
os.popen()
}
The
\module
{
commands
}
module contains wrapper functions for
which take a system command as a string and return any output generated by
\function
{
os.popen()
}
which take a system command as a string and
the command and, optionally, the exit status.
return any output generated by the command and, optionally, the exit
status.
The
\code
{
commands
}
module is only usable on systems which support
The
\module
{
commands
}
module is only usable on systems which support
\code
{
popen()
}
(currently
\UNIX
{}
).
\function
{
os.popen()
}
(currently
\UNIX
{}
). It defines the following
functions:
The
\code
{
commands
}
module defines the following functions:
\setindexsubitem
{
(in module commands)
}
\begin{funcdesc}
{
getstatusoutput
}{
cmd
}
\begin{funcdesc}
{
getstatusoutput
}{
cmd
}
Execute the string
\var
{
cmd
}
in a shell with
\code
{
os.popen()
}
and return
Execute the string
\var
{
cmd
}
in a shell with
\function
{
os.popen()
}
and
a 2-tuple (status, output).
\var
{
cmd
}
is actually run as
return a 2-tuple
\code
{
(
\var
{
status
}
,
\var
{
output
}
)
}
.
\var
{
cmd
}
is
\code
{
\{
cmd ;
\}
2>
\&
1
}
, so that the returned output will contain output
actually run as
\code
{
\{
\var
{
cmd
}
;
\}
2>
\&
1
}
, so that the returned
or error messages. A trailing newline is stripped from the output.
output will contain output or error messages. A trailing newline is
The exit status for the command can be interpreted according to the
stripped from the output. The exit status for the command can be
rules for the
\C
{}
function
\code
{
wait()
}
.
interpreted according to the rules for the
\C
{}
function
\cfunction
{
wait()
}
.
\end{funcdesc}
\end{funcdesc}
\begin{funcdesc}
{
getoutput
}{
cmd
}
\begin{funcdesc}
{
getoutput
}{
cmd
}
Like
\
code
{
getstatusoutput()
}
, except the exit status is ignored an
d
Like
\
function
{
getstatusoutput()
}
, except the exit status is ignore
d
the return value is a string containing the command's output.
and
the return value is a string containing the command's output.
\end{funcdesc}
\end{funcdesc}
\begin{funcdesc}
{
getstatus
}{
file
}
\begin{funcdesc}
{
getstatus
}{
file
}
Return the output of
\samp
{
ls -ld
\var
{
file
}}
as a string. This
Return the output of
\samp
{
ls -ld
\var
{
file
}}
as a string. This
function uses the
\
code
{
getoutput()
}
function, and properly escapes
function uses the
\
function
{
getoutput()
}
function, and properly
backslashes and dollar signs in the argument.
escapes
backslashes and dollar signs in the argument.
\end{funcdesc}
\end{funcdesc}
Example:
Example:
...
...
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