checking for return status between multiple commands Post: 302260053

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Checking return value of commands in pipe

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I am working on script. it reads a file which contains multiple lines Ex; curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=1 curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=2 curl --write-out %{http_code} --silent ...

LEARN ABOUT FREEBSD

introduction

INTRO(1)						    BSD General Commands Manual 						  INTRO(1)

NAME

     intro -- introduction to general commands (tools and utilities)

DESCRIPTION

     Section one of the manual contains most of the commands which comprise the BSD user environment.  Some of the commands included in section
     one are text editors, command shell interpreters, searching and sorting tools, file manipulation commands, system status commands, remote
     file copy commands, mail commands, compilers and compiler tools, formatted output tools, and line printer commands.

     All commands set a status value upon exit which may be tested to see if the command completed normally.  Traditionally, the value 0 signifies
     successful completion of the command, while a value >0 indicates an error.  Some commands attempt to describe the nature of the failure by
     using exit codes as defined in sysexits(3), while others simply set the status to an arbitrary value >0 (typically 1).

SEE ALSO

     apropos(1), man(1), intro(2), intro(3), sysexits(3), intro(4), intro(5), intro(6), intro(7), security(7), intro(8), intro(9)

     Tutorials in the UNIX User's Manual Supplementary Documents.

HISTORY

     The intro manual page appeared in Version 6 AT&T UNIX.

BSD
								 October 21, 2001							       BSD

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Return status...

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