📄 l19.1a

📁 <B>Digital的Unix操作系统VAX 4.2源码</B>

💻 1A

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#printNow that you know how to add lines to a file,you will want to know how to get rid of them.The command   5dwill delete line 5 of a file.  The command   .dwill delete the current line.In the file 'pres' either the 5th or 6th lineis wrong.  Print those lines and delete the badone; then rewrite the corrected file.Then type 'ready'.#create Refgeorge washingtonjohn adamsthomas jeffersonjames madisonjames monroejohn quincy adamsandrew jacksonmartin van burenwilliam henry harrisonjohn tyler#create presgeorge washingtonjohn adamsthomas jeffersonjames madisonjames monroe this is wrong Qwertyuiopjohn quincy adamsandrew jacksonmartin van burenwilliam henry harrisonjohn tyler#user#cmp pres Ref#log#next19.1b 10

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