39、Linux文本处理命令实用指南

Linux文本处理命令实用指南

1. 世界杯比赛分组与赛程安排脚本

在进行体育赛事安排时，合理分组和赛程安排至关重要。以下脚本实现了将参赛队伍随机分组，并生成各小组的预选赛赛程。

TEAMS=teams.txt RANDOMIZED=`mktemp` NUMTEAMS=`wc -l $TEAMS | awk '{ print $1 }'` NUMGROUPS=4 # Each group must have an even number of teams TEAMSINGROUP=`echo "$NUMTEAMS / $NUMGROUPS" | bc` echo "scale=1; $TEAMSINGROUP / 2" | bc | grep "\.0$" > /dev/null 2>&1 if [ "$?" -ne "0" ]; then echo "$NUMTEAMS does not divide into $NUMGROUPS groups neatly." exit 1 fi shuf $TEAMS > $RANDOMIZED for group in `seq 1 $NUMGROUPS` do echo "*** Group $group ***" > /tmp/group${group} grouphead=`expr $group \* $TEAMSINGROUP` head -$grouphead $RANDOMIZED | tail -$TEAMSINGROUP >> /tmp/group${group} done echo "Groupings:" pr -