ShellCheck 警告："Remove surrounding $() to avoid executing output. [SC2091]"

Question

我的脚本中有以下命令集：

message="Secure copying file $remoteHost"
backupLogOutput "Info $message"
$(scp  "$file" "$remoteUser"@"$remoteHost":"$remotePath")  >> "$BACKUPLOG"
backupErrorHandler "$?" "$message"

ShellCheck 在 scp 行 (3) 上给我警告：

Remove surrounding $() to avoid executing output. [SC2091]

脚本有效。我确实想执行输出。我应该忽略这个警告还是应该以不同的方式编写 scp 行？

Answer 1

我认为您实际上并不想执行 scp 输出 - 它看起来更像是您只是想复制一个文件：

scp  "$file" "$remoteUser"@"$remoteHost":"$remotePath"  >> "$BACKUPLOG"

ShellCheck 警告："Remove surrounding $() to avoid executing output. [SC2091]"

ShellCheck warning: "Remove surrounding $() to avoid executing output. [SC2091]"

bash

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