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| author | toni <matzeton@googlemail.com> | 2016-07-29 17:09:46 +0200 |
|---|---|---|
| committer | toni <matzeton@googlemail.com> | 2016-07-29 17:09:46 +0200 |
| commit | 3efa929992f3d255843a32199d38e1699def5989 (patch) | |
| tree | 0bffe917211b29446973e2e57cef62d6475b6054 | |
| parent | 9a068d8833690f5b5518ed3f2721557d8e3e417a (diff) | |
overwrite check
| -rwxr-xr-x | luks_test.sh | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/luks_test.sh b/luks_test.sh index 8e504c4..94fd7ef 100755 --- a/luks_test.sh +++ b/luks_test.sh @@ -10,6 +10,15 @@ fi FILE=$1 NAME=$(basename ${FILE}) +if [ -w ${FILE} ]; then + set +x + read -p "$0: \`${FILE}\` exists: overwrite? (y/N):" answ + if [ "x${answ}" != "xy" ]; then + echo "$0: abort." + exit 1 + fi + set -x +fi if [ ! -w ${FILE} ] || [ `file ${FILE} | grep -qoE 'LUKS encrypted file' && echo 0 || echo 1` -ne 0 ]; then dd if=/dev/zero of=${FILE} bs=1M count=10 /sbin/cryptsetup luksFormat ${FILE} |