在循环内部评估shell变量

Question

我试图运行.sh文件，通过keytool命令将证书放入〜/ .java/deployment/deployment.properties文件中描述的每个jre/lib/security/cacert文件中。

但得到错误“密钥库参数不能为空”在

sudo bash -c keytool -import -v -trustcacerts -alias test-cert -file ./test.cer -keystore ${resultPath}; 

我已经尝试过使用eval和“$（）”符号 - 但这种失败了。我该如何解决这个问题？

#!/bin/bash 

PATTERN=deployment\.javaws\.jre\.[0-9]*\.path 
FILE=~/.java/deployment/deployment.properties 
sep='=' 
trail=lib/security/cacerts 

#Traverse file line by line 
while read line ; do 

    #If line matches pattern 
    if printf %s\\n "${line}" | grep -q "${PATTERN}"; then 
    case $line in 
     (*"$sep"*) 

     #Process line to get path for ../jre/lib/security/cacert file 
     after=${line#*"$sep"}; 
     resultPath=${after%????????}${trail}; 

     #This fails : ${resultPath} somehow is empty 
     sudo bash -c keytool -import -v -trustcacerts -alias test-cert -file ./test.cer -keystore ${resultPath}; 

     ;; 
     (*) 
     ;; 
    esac 
    fi 
done < "$FILE" 

UPDATE：通过庆典-vx行书./script.sh显示此输出：

#!/bin/bash 
PATTERN=deployment\.javaws\.jre\.[0-9]*\.path 
+ PATTERN='deployment.javaws.jre.[0-9]*.path' 
FILE=~/.java/deployment/deployment.properties 
+ FILE=/home/sanya/.java/deployment/deployment.properties 
sep='=' 
+ sep== 
trail=lib/security/cacerts 
+ trail=lib/security/cacerts 

#Traverse file line by line 
while read line ; do 

    #If line matches pattern 
    if printf %s\\n "${line}" | grep -q "${PATTERN}"; then 
    case $line in 
     (*"$sep"*) 

     #Process line to get path for ../jre/lib/security/cacert file 
     after=${line#*"$sep"}; 
     resultPath=${after%????????}${trail}; 

     #This fails : ${resultPath} somehow is empty 
     sudo keytool -importcert -v -trustcacerts -alias test -file ./test.cer -keystore ${resultPath}; 
     ;; 
     (*) 
     ;; 
    esac 
    fi 
done < "$FILE" 
+ read line 
+ printf '%s\n' '#deployment.properties' 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ read line 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ printf '%s\n' '#Sat Sep 06 10:48:49 MSK 2014' 
+ read line 
+ printf '%s\n' deployment.modified.timestamp=1409986129309 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ read line 
+ printf '%s\n' deployment.version=7.21 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ read line 
+ printf '%s\n' deployment.browser.path=/usr/bin/firefox 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ read line 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ printf '%s\n' '#Java Deployment jre'\''s' 
+ read line 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ printf '%s\n' '#Sat Sep 06 10:48:49 MSK 2014' 
+ read line 
+ printf '%s\n' deployment.javaws.jre.0.registered=true 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ read line 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ printf '%s\n' deployment.javaws.jre.0.platform=1.7 
+ read line 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ printf '%s\n' deployment.javaws.jre.0.osname=Linux 
+ read line 
+ grep -q 'deployment.javaws.jre.[0-9]*.path' 
+ printf '%s\n' deployment.javaws.jre.0.path=/usr/lib/jvm/java-7-oracle/jre/bin/java 
+ case $line in 
+ after=/usr/lib/jvm/java-7-oracle/jre/bin/java 
+ resultPath=/usr/lib/jvm/java-7-oracle/jre/lib/security/cacerts 
+ sudo keytool -importcert -v -trustcacerts -alias test -file ./test.cer -keystore /usr/lib/jvm/java-7-oracle/jre/lib/security/cacerts 
Enter keystore password: keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect 
java.io.IOException: Keystore was tampered with, or password was incorrect 
    at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:772) 
    at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:55) 
    at java.security.KeyStore.load(KeyStore.java:1214) 
    at sun.security.tools.KeyTool.doCommands(KeyTool.java:885) 
    at sun.security.tools.KeyTool.run(KeyTool.java:340) 
    at sun.security.tools.KeyTool.main(KeyTool.java:333) 
Caused by: java.security.UnrecoverableKeyException: Password verification failed 
    at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:770) 
    ... 5 more 
+ read line 

错误线

Enter keystore password: keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect 

显示，因为用户应该密钥存储文件输入密码，但是当这个脚本运行时，不会提示输入密码的提示。我该如何解决这个问题？

Answer 1

您应该使用双引号确保变量扩展${resultPath}为shell生成一个单词。

因此您的临界线应该是

sudo keytool -importcert -v -trustcacerts -alias test -file ./test.cer -keystore "${resultPath}"; 

您还可能有意:?或:-变量扩展修饰符。

注意 在我看来，该keytool程序抱怨你的文件是无效的，也许你的问题没有任何shell编程。