执行 gnu 并行命令时出错

Question

我正在尝试使用 gnu 并行执行脚本 test3.exp(如下所示(：----

seq 1 3 | parallel test3.exp data{}/

但是每次我收到此错误时：---

Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at /usr/bin/parallel line 119.

我使用 apt-get 安装并行安装它。

apt-cache policy parallel perl 的输出为：---

  bhavya@guavus:/usr/bin$ apt-cache policy parallel perl
  parallel:
    Installed: 20120422-1
    Candidate: 20141022+ds1-1
    Version table:
       20141022+ds1-1 500
          500 http://in.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
          500 http://in.archive.ubuntu.com/ubuntu xenial/universe i386 Packages
   *** 20120422-1 100
          100 /var/lib/dpkg/status
  perl:
    Installed: 5.22.1-9
    Candidate: 5.22.1-9
    Version table:
   *** 5.22.1-9 500
          500 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

请帮我解决这个问题。

Answer 1

更新存储库，然后使用

sudo apt-get install parallel

为我工作。

apt-cache policy 并行 perl 的内容 ：--

bhavya@guavus:~/Documents/script$ apt-cache policy parallel perl
    parallel:
      Installed: 20141022+ds1-1
      Candidate: 20141022+ds1-1
      Version table:
     *** 20141022+ds1-1 500
            500 http://in.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
            500 http://in.archive.ubuntu.com/ubuntu xenial/universe i386 Packages
            100 /var/lib/dpkg/status
    perl:
      Installed: 5.22.1-9
      Candidate: 5.22.1-9
      Version table:
     *** 5.22.1-9 500
            500 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
            100 /var/lib/dpkg/status

Answer 2

perl 的版本比/usr/bin/parallel 更新。 defined用于检查数组或哈希中的条目是否存在

defined($array[2])
defined($hash{"word"})
# what causes error in parallel (20120422)
119: ((defined @::opt_v) ? "-vv" : ""),
# what is suggested in error message
119: ((@::opt_v) ? "-vv" : ""),