Repository: geektime-geekbang/geekbanglinux
Branch: master
Commit: 56d980ff45e4
Files: 22
Total size: 2.6 KB

Directory structure:
gitextract_uj7qur02/

├── README.md
├── demo/
│   ├── 1.sh
│   ├── 10.sh
│   ├── 11.sh
│   ├── 12.sh
│   ├── 13.sh
│   ├── 14.sh
│   ├── 15.sh
│   ├── 2.sh
│   ├── 3.sh
│   ├── 4.sh
│   ├── 5.sh
│   ├── 6.sh
│   ├── 7.sh
│   ├── 8.sh
│   ├── 9.sh
│   ├── README
│   ├── arg.awk
│   ├── kpi.txt
│   ├── myfunc.awk
│   └── result.awk
└── ppt/
    └── readme

================================================
FILE CONTENTS
================================================

================================================
FILE: README.md
================================================
# Linux 实战技能100讲
课程相关文档


================================================
FILE: demo/1.sh
================================================
#!/bin/bash
# demo
cd /var/ 
ls 
pwd 
du -sh 
du -sh *


================================================
FILE: demo/10.sh
================================================
#!/bin/bash
# root  user1  other
if [ $USER = root    ] ; then
	echo "root"
elif [ $USER = user1   ] ;then
        echo "user1"
else
	echo " other user"
fi



================================================
FILE: demo/11.sh
================================================
#!/bin/bash

# demo  if then  if  then  fi  fi 

if [ $UID = 0 ] ; then
	echo " please run"
        if [ -x /tmp/10.sh ] ; then
              /tmp/10.sh
        fi
else
        echo " switch user  root "
fi


================================================
FILE: demo/12.sh
================================================
#!/bin/bash

# case demo

case "$1" in
      "start"|"START")
       echo $0 start.....
      ;;

      "stop")
       echo $0 stop.....
      ;;

      "restart"|"reload")
       echo $0 restart....
      ;;
      *)
       echo "Usage: $0 {start|stop|restart|reload}"
      ;;
esac



================================================
FILE: demo/13.sh
================================================
#!/bin/bash

# help  display help help

#for pos  in  $*
#do
#	if [ "$pos" = "help" ]; then
#            echo $pos $pos
#        fi
#
#
#done

while [ $# -ge 1 ]
do
   if [ "$1" = "help" ]; then
             echo $1 $1
   fi
   shift
done



================================================
FILE: demo/14.sh
================================================
#!/bin/bash

# functions

checkpid() {

   local i

   for i in $* ; do
       [ -d "/proc/$i" ] && return 0
   done

   return 1



}


================================================
FILE: demo/15.sh
================================================
#!/bin/bash


# signal demo

trap "echo sig 15" 15
trap "echo sig 2" 2

echo $$

while :
do
  :
done


================================================
FILE: demo/2.sh
================================================
#!/bin/bash

# demo 2
cd  /tmp
pwd


================================================
FILE: demo/3.sh
================================================
#!/bin/bash

cat > /root/a.sh <<EOF
echo "hello bash"
EOF


================================================
FILE: demo/4.sh
================================================
#!/bin/bash

# test echo

echo $demo_var1


================================================
FILE: demo/5.sh
================================================
#!/bin/bash
# demo

echo "hello bash"
du -sh 



================================================
FILE: demo/6.sh
================================================
#!/bin/bash

# PID Pname

echo $$
echo $0


================================================
FILE: demo/7.sh
================================================
#!/bin/bash

# $1 $2... $9 ${10}

pos1=$1
pos2=${2-_}

echo $pos1
echo $pos2



================================================
FILE: demo/8.sh
================================================
#!/bin/bash

# exit  demo

pwd
exit 127


================================================
FILE: demo/9.sh
================================================
#!/bin/bash

# if else demo

if [ $USER = root   ] ;then
   echo " user root"
   echo $UID
else
   echo " other user"
   echo $UID
fi


================================================
FILE: demo/README
================================================

shell 和 awk  演示脚本


================================================
FILE: demo/arg.awk
================================================
BEGIN{

for(x=0;x<ARGC;x++)
    print ARGV[x]
print ARGC
}


================================================
FILE: demo/kpi.txt
================================================
user1 70 72 74 76 74 72
user2 80 82 84 82 80 78
user3 60 61 62 63 64 65
user4 90 89 88 87 86 85
user5 45 60 63 62 61 50


================================================
FILE: demo/myfunc.awk
================================================
BEGIN{
    function max(num1,num2)
    {
	if(num1>num2)
	    return num1
	else
	    return num2
    }
}


================================================
FILE: demo/result.awk
================================================
{
sum = 0
for( column = 2 ; column <= NF; column++ )
	sum += $column

average[$1] = sum / ( NF - 1 )




if( average[$1] >= 80 )
	letter = "S"
else if( average[$1] >= 70 )
	letter = "A"
else if( average[$1] >= 60 )
	letter = "B"
else
	letter = "C"

print $1,average[$1],letter

letter_all[letter]++



}
END{
for( user in average )
	sum_all += average[user]

avg_all = sum_all / NR
print "average all:",avg_all


for( user in average )
	if( average[user] > avg_all )
		above++
	else
		below++

print "above",above
print "below",below
print "S:",letter_all["S"]
print "A:",letter_all["A"]
print "B:",letter_all["B"]
print "C:",letter_all["C"]



}


================================================
FILE: ppt/readme
================================================