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44 lines
1.1 KiB
Bash
Executable File
44 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# Ensure that cat -E produces same output as cat, module `$'s,
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# even when applied to a file in /proc.
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if test "$VERBOSE" = yes; then
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set -x
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cat --version
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fi
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pwd=`pwd`
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t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
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trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
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trap '(exit $?); exit $?' 1 2 13 15
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framework_failure=0
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mkdir -p $tmp || framework_failure=1
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cd $tmp || framework_failure=1
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if test $framework_failure = 1; then
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echo "$0: failure in testing framework" 1>&2
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(exit 1); exit 1
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fi
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f=/proc/cpuinfo
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test -f $f \
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|| {
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echo "$0: no $f skipping this test" 1>&2
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(exit 77); exit 77
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}
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fail=0
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# Yes, parts of /proc/cpuinfo might change between cat runs.
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# If that happens, consider choosing a file that's less likely to change,
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# or just filter out the changing lines. The sed filter should help
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# to avoid any spurious numeric differences.
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cat -E $f | sed 's/[0-9][0-9]*/D/g' | tr -d '$' > out || fail=1
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cat $f | sed 's/[0-9][0-9]*/D/g' | tr -d '$' > exp || fail=1
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cmp out exp || fail=1
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test $fail = 1 && diff out exp 2> /dev/null
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(exit $fail); exit $fail
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