作用：切割文件
格式:
split [option] [input] [prefix]
-l 指定分割后文件的最大行數(shù)
ghostwu@dev:~/linux/split$ cat -n ghostwu.txt 1 What is Memcached? 2 Free & open source, 3 high-performance, 4 distributed memory object caching system, 5 generic in nature 6 but intended for use in speeding up dynamic web applications by alleviating database load. 7 Memcached is an in-memory key-value store for small chunks of arbitrary data 8 (strings, objects) from results of database calls 9 API calls, or page rendering. 10 Memcached is simple yet powerful. 11 Its simple design promotes quick deployment, 12 ease of development 13 and solves many problems facing large data caches. 14 Its API is available for most popular languages.
把ghostwu.txt這個(gè)文件linux常用命令，每個(gè)文件最大6行l(wèi)inux常用命令，前綴為ghostwu_
ghostwu@dev:~/linux/split$ ls ghostwu.txt ghostwu@dev:~/linux/split$ wc -l ghostwu.txt 14 ghostwu.txt ghostwu@dev:~/linux/split$ split -l 6 ghostwu.txt ghostwu_ ghostwu@dev:~/linux/split$ ls ghostwu_aa ghostwu_ab ghostwu_ac ghostwu.txt ghostwu@dev:~/linux/split$ wc -l ghostwu_ab 6 ghostwu_ab ghostwu@dev:~/linux/split$ wc -l ghostwu_aa 6 ghostwu_aa ghostwu@dev:~/linux/split$ wc -l ghostwu_ac 2 ghostwu_ac
用通配符更簡(jiǎn)單
ghostwu@dev:~/linux/split$ ls ghostwu_aa ghostwu_ab ghostwu_ac ghostwu.txt ghostwu@dev:~/linux/split$ wc -l ghostwu_* 6 ghostwu_aa 6 ghostwu_ab 2 ghostwu_ac 14 total
-a : 指定切割文件的后綴長(zhǎng)度
ghostwu@dev:~/linux/split$ split -l 5 -a 3 ghostwu.txt ghostwu_ ghostwu@dev:~/linux/split$ ls ghostwu_aaa ghostwu_aab ghostwu_aac ghostwu.txt ghostwu@dev:~/linux/split$ wc -l ghostwu_* 5 ghostwu_aaa 5 ghostwu_aab 4 ghostwu_aac 14 total
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