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1、cut -d 按照其后面的字符串分割 -f 分割后取哪一个位置的分割项 -c 按照字符分割后取哪一个位置到哪一个位置 echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/soft/jdk1.8.0_144/bin:/root/soft/hadoop-2.7.2/bin:/root/soft/hadoop-2.7.2/sbin:/root/bin echo $PATH | cut -d ':' -f2 /usr/local/bin 按照:分割后取第二项（shell的下标从1开始） echo $PATH | cut -c 5- /local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/soft/jdk1.8.0_144/bin:/root/soft/hadoop-2.7.2/bin:/root/soft/hadoop-2.7.2/sbin:/root/bin 按照字符分割后取第5位及其后面的字符 echo $PATH | cut -c 5-10 /local 按照字符分割后取5，6,7,8,9,10位 2、grep grep [-acinv] '' filename -c 计算出待搜寻字符串出现的次数 -i 忽略大小写 -n 顺便输出行号 -v 反向选择 [root@localhost ~]# cat 1.txt aaaaaaaaaaa AAAAAA bbbb bbb ccccccc ddddddddd eeeeeeeeee ffffffffffff ggggggggg GGGGGGGG [root@localhost ~]# grep -c 'a' 1.txt [root@localhost ~]# grep -ic 'a' 1.txt 3、sort sort [-fbMnrtuk] [file or stdin] [root@localhost ~]# cat 1.txt | sort -t ':' -k 2 ffffffffffff:1 AAAAAA:10000 bbbb:2 GGGGGGGG:22 bbb:33 ccccccc:4 ggggggggg:4 vvvv:7 eeeeeeeeee:9 ddddddddd:90 xxxx:98 aaaaaaaaaaa:99 [root@localhost ~]# cat 1.txt | sort -t ':' -k 2 -c [root@localhost ~]# [root@localhost ~]# cat 1.txt | sort -t ':' -k 2 -n ffffffffffff:1 bbbb:2 ccccccc:4 ggggggggg:4 vvvv:7 eeeeeeeeee:9 GGGGGGGG:22 bbb:33 ddddddddd:90 xxxx:98 aaaaaaaaaaa:99 AAAAAA:10000 (责任编辑：IT) |