text: table of contents
  - stretch 4.10-2
  - testing 4.16-2
  - stretch-backports 4.16-1~bpo9+1
  - unstable 4.16-2
  NAME¶popen, pclose - pipe stream to or from a process
  SYNOPSIS¶
  #include <stdio.h> FILE *popen(const char *command, const char *type); int pclose(FILE *stream);
  Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
  popen(), pclose():
  DESCRIPTION¶The¶no to an appropriate value in the case of an error.
  ERRORS¶The.
  ATTRIBUTES¶For an explanation of the terms used in this section, see attributes(7).
  CONFORMING TO¶POSIX.1-2001, POSIX.1-2008.
  The 'e' value for type is a Linux extension.
  BUGS¶Since.