Question

我写道：

ssh $ip_address "grep -i 20-10-2018 | awk -F "," '{print $2",""open_"$5}' result.csv" | while read line
do
        echo $Date":00:00",$line
done

这引发了这个错误：

awk：{print，open_} awk：^语法错误

有人可以帮忙吗？

Answer 1

将heredoc用于run your commands over ssh：

ssh "$ip_address" << 'EOF'                 # shell will pass the heredoc as is to ssh because the end marker EOF is in quotes
    grep -i 20-10-2018 result.csv |        # I guess you meant to pass result.csv to grep, rather than awk
    awk -F "," '{ print $2",open_"$5 }' |  # good to put the parts of the pipeline on different lines for better readability
    while read line; do
      echo $Date":00:00",$line             # not sure what you mean by $Date here - probably $(date)?
    done
EOF

我不确定echo $Date":00:00"你的意思。我完整地留下了这部分。

请参阅此文章以了解如何引用awk命令：

Difference between single and double quotes in awk

关于在shell中使用引号的另一个有用的帖子：

When to wrap quotes around a shell variable?

Answer 2

你在单引号内写双引号是错误的。任何代码在单引号内写入第一个双引号。

使用多个引号时出错

2 个答案: