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3 Weeks Ago
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Pattern matching
Use and complete the template provided. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data: How do you locate all nonblank lines that don't begin with #, /*, or // 2. Relevant commands, code, scripts, algorithms: grep and regular expressions 3. The attempts at a solution (include all code and scripts): grep ^[^ # \/* \//] file 4. School (University) and Course Number: UB CS 615 |
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3 Weeks Ago
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For a start, remove the spaces in brakets:
Code:
ant:/home/vbe $ grep ^[^ # \/* \//] greptest grep: [] imbalance. ant:/home/vbe $ more greptest 1. The problem statement, all variables and given/known data: How do you locate all nonblank lines that don't begin with #, /*, or // # 1 /* 2 // 3 Ha * plpl * * a / b /# c ant:/home/vbe $ grep ^[^#\/*\//] greptest 1. The problem statement, all variables and given/known data: How do you locate all nonblank lines that don't begin with #, /*, or // Ha * plpl * |
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3 Weeks Ago
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Did you look at my screen hard copy? and the difference at execution of the 1rst attempt -1rst line and second (spaces removed...)?
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