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| [1] pry(main)> cmd = ["tiff2pdf"] | |
| => ["tiff2pdf"] | |
| [2] pry(main)> cmd << "-p" << "A4" | |
| => ["tiff2pdf", "-p", "A4"] | |
| [3] pry(main)> cmd << "-c" << "FFM" | |
| => ["tiff2pdf", "-p", "A4", "-c", "FFM"] | |
| [4] pry(main)> `#{cmd}` | |
| sh: [tiff2pdf,: command not found | |
| => "" |
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