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use [ -z .. ] instead of explicit compare with ""

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Simon Ruderich
2015-12-05 14:25:11 +01:00
parent 2d6cb75f8a
commit 2f3ee624c5
1 changed files with 1 additions and 1 deletions
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2
letsencrypt.sh
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@@ -55,7 +55,7 @@ sign_domain() {
challenge_token="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]' | sed 's/{/\n{/g' | grep 'http-01' | grep -Eo '"token":\s*"[^"]*"' | cut -d'"' -f4 | sed 's/[^A-Za-z0-9_\-]/_/g')"
challenge_uri="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]' | sed 's/{/\n{/g' | grep 'http-01' | grep -Eo '"uri":\s*"[^"]*"' | cut -d'"' -f4)"
if [ "${challenge_token}" = "" ] || [ "${challenge_uri}" = "" ]; then
if [ -z "${challenge_token}" ] || [ -z "${challenge_uri}" ]; then
echo " + Error: Can't retrieve challenges (${response})"
exit 1
fi