Symbolic links refer to:
A symbolic path indicating the abstract location of another file.
Hard links refer to:
The specific location of physical data.
Hard links can only refer to data that exists on the same file system.
a hard link is a reference, or pointer, to physical data on a storage volume.
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http://blog.csdn.net/richardysteven/article/details/7381452
2. 运行
awk 'program' input-file1 input-file2 ...
or
awk -f program-file input-file1 input-file2 ...
3. program的格式
program = pattern {action}
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http://www.hcs.harvard.edu/~dholland/computers/awk.html
awk and symbolic link
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转载自wwwjjq.iteye.com/blog/1566437
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