[root@mode day2]#trap -l 1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP &
exec<a.logwhile read linedodone cat a.log|while read linedo hksjkdone cat a.log|while read linedo dhkshkdone <a.log
echo LANG="zh_CN.GB 18030" >>/etc/sysconfig/i18n [root@mode ~]# source /etc/sysconfig/i18n [root@mode ~]# cat /etc/sysconfig/i18n LANG="en_US.UTF-8"LANG="zh_CN.GB 18030"SYSFONT="l
法一:[root@mode oldboy]# echo $RANDOM21174法二:[root@mode oldboy]# openssl rand -base64 88CiQPMdoL2E=[root@mode oldboy]# openssl rand -base64 8|md5sumf152dc2f6dfdf5942c13b32e8b816635 -法三:[root@mode
cat bbs.access.2014-05-01.log | awk '{print $1}' | sort -n | uniq -c | sort -n | tac | head -n 10cat bbs.access.2014-05-01.log | awk '{print $1}' | sort -n | uniq -c | sort -n
>/dev/null 2>&1 2>/dev/null以上两种方式最常用!2>&1>/dev/null>&2
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