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zehuda
V2EX  ›  问与答

perl 问题

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  •   zehuda · Jan 11, 2016 · 2529 views
    This topic created in 3762 days ago, the information mentioned may be changed or developed.

    perl 调用 awk printf 双引号冲突

    调用方式:
    ps -eo etime,pid,comm | grep java | awk -F' ' '{ if(length(\$1)>=10) printf "%011s,%s\n",\$1,\$2; else if(length(\$1)>5) printf "00-%08s,%s\n",\$1,\$2;else printf "00-00:%s,%s\n",\$1,\$2; }' > $tmpfile;

    报错:
    awk: { if(length($1)>=10) printf "%011s,%s
    awk: ^ unterminated string

    3 replies    2016-01-11 17:30:52 +08:00
    jiefoxi
        1
    jiefoxi  
       Jan 11, 2016 via Android
    换行符 \n 还需要转义
    zehuda
        2
    zehuda  
    OP
       Jan 11, 2016
    @jiefoxi 换行不就是\n 吗 还要怎么转义呢
    zehuda
        3
    zehuda  
    OP
       Jan 11, 2016
    @jiefoxi 确实,换成\\n 就可以了 应该是\需要转义,多谢!
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