cut截取数据
参考文档
https://blog.csdn.net/caoshunxin01/article/details/79355566
[root@kube-node3 ~]# cat tab_space.txt
this is tab finish.
this is several space finish
[root@kube-node3 ~]# cat tab_space.txt | grep this | sed -n '1p' | cut -d ' ' -f 1
this
在 /etc/passwd 中输出第 3-5 列:
cat /etc/passwd | cut -d ':' -f 3-5
在 /etc/passwd 中输出第 3到最后一列
cat /etc/passwd | cut -d ':' -f 3-
cut字符串截取 http://blog.51cto.com/2627lounuo/1790446
去掉最后面的 && : 截取最后面&&的所有左端字符
[root@oracledb ~]# cat c.sh
yum -y install binutils && yum -y install compat-libcap1 &&
[root@oracledb ~]# str=`cat orcale_output.sh`
[root@oracledb ~]# echo ${str}
yum -y install binutils && yum -y install compat-libcap1 &&
[root@oracledb ~]# cut=${str%&&*}
[root@oracledb ~]# echo ${cut}
yum -y install binutils && yum -y install compat-libcap1