Shell include文件

shell文件 include 的方法——“ 。 文件”
[macg@localhost testshell]$ ls
testget testlib[macg@localhost testshell]$ cat testlib
#!/bin/bash
test() {
echo "hello "
}

[macg@localhost testshell]$ cat testget
#!/bin/bash

. /home/macg/testshell/testlib include 文件
test 调用include文件里的函数[macg@localhost testshell]$ sh testget
hello


shell include 不止可以包含函数，也可以包含全局变量
[macg@localhost testshell]$ cat testlib
#!/bin/bash

test() {
echo "hello "
}

TESTPRARAM="THIS IS A TEST"

[macg@localhost testshell]$ cat testget
#!/bin/bash

. /home/macg/testshell/testlib
test
echo $TESTPRARAM[macg@localhost testshell]$ sh testget
hello
THIS IS A TEST

实际上sys v的启动文件都采用此种办法include 事先定义在/etc/rc.d/init.d/functions中的函数
[root@localhost macg]# cat /etc/init.d/sendmail
#!/bin/bash

# Source function library.
. /etc/rc.d/init.d/functions


for in 语句include *.sh文件的方法
for i in /etc/profile.d}
local pid

# Test syntax.
if [ "$#" = 0 ] ; then
echo $"Usage: status {program}"
return 1
fi

# First try "pidof"
pid=`pidof -o $$ -o $PPID -o %PPID -x $1 || \
pidof -o $$ -o $PPID -o %PPID -x ${base}`
if [ -n "$pid" ]; then
echo $"${base} (pid $pid) is running..."
return 0
fi

# Next try "/var/run/*.pid" files
if [ -f /var/run/${base}.pid ] ; then
read pid < /var/run/${base}.pid
if [ -n "$pid" ]; then
echo $"${base} dead but pid file exists"
return 1
fi
fi
# See if /var/lock/subsys/${base} exists
if [ -f /var/lock/subsys/${base} ]; then
echo $"${base} dead but subsys locked"
return 2
fi
echo $"${base} is stopped"
return 3
}
[root@mm testtip]# vi test.sh

#!/bin/bash
. ./functions

echo -n "input:"
read para
status $para
result=$?
echo "$result" [root@mm testtip]# sh test.sh
input:bgpd
bgpd (pid 3430) is running...
0

[root@mm testtip]# sh test.sh
input:xxx
xxx is stopped
3

• killproc()
  

以名字的方式杀掉一个进程[root@mm testtip]# vi test.sh

#!/bin/bash
. ./functions

echo -n "input:"
read para
killproc $para
result=$?
echo "$result"[root@mm testtip]# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 4769 1 0 14:47 ? 00:00:00 rpc.mountd
root 4795 1 0 14:47 ? 00:00:00 /usr/sbin/dhcpd
root 4942 4408 0 16:32 pts/0 00:00:00 ps –ef

[root@mm testtip]# sh test.sh
input:dhcpd
0 OK ]


[root@mm testtip]# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 4769 1 0 14:47 ? 00:00:00 rpc.mountd
root 4950 4408 0 16:34 pts/0 00:00:00 ps -ef

confirm() 系统暂停，输入y/n/c
# Confirm whether we really want to run this service
confirm() {
[ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=yes
while : ; do
echo -n $"Start service $1 (Y)es/(N)o/(C)ontinue? [Y] "
read answer
if strstr $"yY" "$answer" || [ "$answer" = "" ] ; then
return 0
elif strstr $"cC" "$answer" ; then
rm -f /var/run/confirm
[ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=no
return 2
elif strstr $"nN" "$answer" ; then
return 1
fi
done
} [machome@mm testtip]$ cat test.sh
#!/bin/bash
. ./functions

confirm
result=$?
echo "$result"
[machome@mm testtip]$ sh test.sh
Start service (Y)es/(N)o/(C)ontinue? [Y] y
0
[guan@mm testtip]$ sh test.sh
Start service (Y)es/(N)o/(C)ontinue? [Y] n
1
[guan@mm testtip]$ sh test.sh
Start service (Y)es/(N)o/(C)ontinue? [Y] c
2

/etc/profile中的的函数pathmunge()，给$PATH增加一个路径
#!/bin/bash

pathmunge () {
if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
fi
}
[root@vm test]# vi tip.sh

pathmunge /home/macg
pathmunge /home/mac
echo $PATH[root@vm test]# ./tip.sh
/home/mac:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr
/X11R6/bin:/home/macg/bin:/home/macg
[root@vm test]#