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Top Forums Shell Programming and Scripting how to redirect multiple input files? Post 302356640 by frank_rizzo on Saturday 26th of September 2009 01:47:54 PM
Old 09-26-2009
Quote:
But it still does not work. It says "cat: No such file or directory".
the code you have is treating cat as a file name.
Code:
process<cat f1 f2

to use this method you will need to do it in two steps
Code:
cat f1 f2 >/tmp/foo
process</tmp/foo

Quote:
My program command can run like this: "./a.out file1.txt - file2.txt -", when the parameter is a file name, it will read file content, otherwise, when the parameter is a hyphen, it will read from stdin(just like "cat file1 - file2 -"). I need write a test script to run this program, however, I don't know how to redirect two file for stdin. Anybody can help me? Thanks.
I don't really understand the requirements so I am not sure how to provide a solution. Having parameters like <file1> <-> <file2> <-> just does not seem right. What is the end result you are looking for?
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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