001、
[root@pc1 test2]# ls
a.txt
[root@pc1 test2]# cat a.txt
batch01 xyz1
batch02 xyz2
batch03 xyz3
batch04 xyz4
batch05 xyz5
[root@pc1 test2]# awk '{sub([0-9]+, "", $1); print $0}' a.txt
awk: cmd. line:1: {sub([0-9]+, "", $1); print $0}
awk: cmd. line:1: ^ syntax error
awk: cmd. line:1: {sub([0-9]+, "", $1); print $0}
awk: cmd. line:1: ^ syntax error
[root@pc1 test2]# awk '{sub(/[0-9]+/, "", $1); print $0}' a.txt
batch xyz1
batch xyz2
batch xyz3
batch xyz4
batch xyz5
标签：test2,sub,cmd,batch,awk,linux,txt From： https://www.cnblogs.com/liujiaxin2018/p/17731807.html