如何编写一个 bash 脚本来自动填充给定语句中的单词？

Question

这是声明

sudo update-alternatives   --install    "/usr/bin/word"    "word" 
     "/usr/lib/jvm/jdk1.8.0_version/bin/word" 1

其中需要用这些名称逐一替换单词：

appletviewer   jarsigner  jconsole  jrunscript  native2ascii  schemagen       xjc
apt            java       jcontrol  jsadebugd   orbd          javac      jdb             jstack      pack200       servertool
extcheck       javadoc    jhat      jstat       policytool    tnameserv
HtmlConverter  javah      jinfo     jstatd      rmic          unpack200
idlj           javap      jmap      jvisualvm   rmid          wsgen
jar            javaws     jps       keytool     rmiregistry   wsimport

例如我们的输出应该是这样的：

sudo update-alternatives --install  /usr/bin/java java  /usr/lib/jvm/bin/java 1


sudo update-alternatives --install  /usr/bin/jar jar  /usr/lib/jvm/bin/jar 

Answer 1

像这样的东西应该能够逐行逐字地读取你的文件：

while read line; do
    for word in $line; do
        sudo update-alternatives --install /usr/bin/$word $word /usr/lib/jvm/bin/$word
    done
done < filelist