tail 查看文件的末尾内容¶
tail 用于查看文件的末尾内容,默认为文末 10 行。
命令格式:¶
tail [OPTION]... [FILE]...
常用选项:¶
-f, --follow[={name|descriptor}]
循环读取文件内容,常用于查看日志写入
-n, --lines=[+]NUM
指定查看的行数,如果有 + 号,则查看该行之后的所有内容
使用实例:¶
[Linux]$ tail /etc/samba/smb.conf
[global]
map to guest = Bad User
log file = /var/log/samba/%m
log level = 1
[guest]
path = /mnt/samba/
read only = no
guest ok = yes
guest only = yes
[Linux]$ tail -n 3 /etc/samba/smb.conf
read only = no
guest ok = yes
guest only = yes
# 在行号前加入 + 会从文件开头算起
[Linux]$ tail -n +3 /etc/samba/smb.conf
log file = /var/log/samba/%m
log level = 1
[guest]
path = /mnt/vmware/samba/
read only = no
guest ok = yes
guest only = yes