diff options
Diffstat (limited to 'tests/dd/skip-seek2')
-rwxr-xr-x | tests/dd/skip-seek2 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/dd/skip-seek2 b/tests/dd/skip-seek2 new file mode 100755 index 000000000..e5da57ca6 --- /dev/null +++ b/tests/dd/skip-seek2 @@ -0,0 +1,40 @@ +#!/bin/sh +# show how to skip an amount that is smaller than the nominal block size. +# There's a more realistic example in the documentation. + +if test "$VERBOSE" = yes; then + set -x + dd --version +fi + +pwd=`pwd` +tmp=skip-seek.$$ +trap 'status=$?; cd $pwd; rm -rf $tmp && exit $status' 0 +trap '(exit $?); exit' 1 2 13 15 + +framework_failure=0 +mkdir $tmp || framework_failure=1 +cd $tmp || framework_failure=1 + +if test $framework_failure = 1; then + echo 'failure in testing framework' + (exit 1); exit +fi + +fail=0 + +echo LA:3456789abcdef > in || fail=1 +(dd bs=1 skip=3 count=0 && dd bs=5) < in > out 2> /dev/null || fail=1 +case `cat out` in + 3456789abcdef) ;; + *) fail=1 ;; +esac + +echo LA:3456789abcdef > in || fail=1 +(dd bs=1 skip=3 count=0 && dd bs=5 count=2) < in > out 2> /dev/null || fail=1 +case `cat out` in + 3456789abc) ;; + *) fail=1 ;; +esac + +(exit $fail); exit |