Re: [PATCH] fdtget-runtest.sh: Fix failures when /bin/sh isn't bash
From: Stephen Warren <hidden>
Date: 2012-11-05 17:39:30
On 11/02/2012 02:26 PM, Mike Frysinger wrote:
On Tuesday 20 March 2012 22:23:46 Stephen Warren wrote:quoted
On Ubuntu, /bin/sh is dash (at least by default), and dash's echo doesn't accept the -e option. This means that fdtget-runtest.sh's EXPECT file will contain "-e foo" rather than just "foo", which causes a test failure. To work around this, run /bin/echo instead of (builtin) echo, which has more chance of supporting the -e option. Another possible fix is to change all the #! lines to /bin/bash rather than /bin/sh, and change run_tests.sh to invoke sub-scripts using $SHELL instead of just "sh". However, that would require bash specifically, which may not be desirable.--- a/tests/fdtget-runtest.sh +++ b/tests/fdtget-runtest.sh -echo -e $expect >$EXPECT +/bin/echo -e $expect >$EXPECTthe better fix is to use printf and %b: printf '%b\n' "$expect" > $EXPECT
What is the relative availability (e.g. on anything other than a modern Linux distro) of a printf binary vs. a /bin/echo binary that supports -e? I certainly heard about /bin/echo -e long before I knew about /usr/bin/printf, although it's quite possible that has no correlation with where /usr/bin/printf is actually installed.