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管道符常营命令以及特殊符号-肥肥的老林
source link: http://blog.51cto.com/13067688/2084383
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管道符常营命令cut:截取字符串，比如我们要以“：”作为分隔符，取第一列，[root@localhost~]#cat/etc/passwd|head-5|cut-d":"-f1rootbindaemonadmlp这里-d是指定分割符，-f后面接数字，是指截取范围，上面的例子是截取第一段，就输入-f1，如果想截取两段，就用“，”分开，后面再接一个数字。如f1,2。如果是1-3段，
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