《鳥哥的Linux私房菜》之管道命令的使用
阿新 • • 發佈：2018-12-15
1、cut -d 按照其後面的字串分割 -f 分割後取哪一個位置的分割項 -c 按照字元分割後取哪一個位置到哪一個位置 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:分割後取第二項（shell的下標從1開始） 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 按照字元分割後取第5位及其後面的字元 echo $PATH | cut -c 5-10 /local 按照字元分割後取5，6,7,8,9,10位 2、grep grep [-acinv] '' filename -c 計算出待搜尋字串出現的次數 -i 忽略大小寫 -n 順便輸出行號 -v 反向選擇 [[email protected] ~]# cat 1.txt aaaaaaaaaaa AAAAAA bbbb bbb ccccccc ddddddddd eeeeeeeeee ffffffffffff ggggggggg GGGGGGGG [[email protected] ~]# grep -c 'a' 1.txt 1 [[email protected] ~]# grep -ic 'a' 1.txt 2 3、sort sort [-fbMnrtuk] [file or stdin] [[email protected] ~]# 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 [[email protected] ~]# cat 1.txt | sort -t ':' -k 2 -c [[email protected] ~]# [[email protected] ~]# 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