
平台论坛博客文库

› 论坛 › 程序设计 › Shell › shell——cd唱片管理

shell——cd唱片管理 [复制链接]

青乡之b

白手起家

论坛徽章:: 0

发表于 2011-06-21 12:42 |显示全部楼层

本帖最后由青乡之b 于 2011-06-21 12:46 编辑

#!/bin/sh
#A simple example shell script for managing a CD.
#定义变量
menu_choice=""
current_cd=""
title_file="title.cdb"
tracks_file="tracks.cdb"
trap 'rm -f $temp_file' EXIT
#定义工具型函数
get_return(){
echo -e "Press return \c"
read x
return 0
}
get_confirm(){
echo -e "Are you sure ? \c"
while true
do
read x
case "$x" in
y | yes | Y | Yes |YES)
return 0;;
n | no | N | No | NO)
echo
echo "Cancel"
return 1;;
*) echo "Please enter yes or no:";;
esac
done
}
#主菜单函数
set_menu_choice(){
clear
echo "Options :-"
echo
echo " a) Add new CD"
echo " f) Find CD"
echo " c) Count the CDs and tracks in the catalog"
if [ "$cdcatnum" != "" ]; then
echo " l) List tracks on $cdtitle"
echo " r) Remove $cdtitle"
echo " u) Update tracks information for $cdtitle"
fi
echo " q) Quit
echo
echo -e "Please enter choice, then press return \c"
read menu_choice
return
}
#插入标题文件和曲目文件函数
insert_title(){
echo $* >> $title_file
return
}
insert_track(){
echo $* >> $tracks_file
return
}
add_record_tracks(){
echo "Enter track information for this CD"
echo "When no more tracks, enter q"
cdtrack=1
cdttitle=""
while [ "$cdttitle" != "q" ]
do
echo -e "Track $cdtrack, track title? \c"
read tmp
cdttitle=${tmp%%,*}
if [ "$tmp" != "$cdttitle" ]; then
echo "Sorry, no commas allowed"
continue
fi
if [ -n "$cdttitle" ]; then
if [ "$cdttitle" != "q" ]; then
insert_track $cdcatnum,$cdtrack,$cdttitle
fi
else
cdtrack=$((cdtrack-1))
fi
cdtrack=$((cdtrack+1))
done
}
add_records(){
echo -e "Enter catalog name\c"
read tmp
cdcatnum=${tmp%%,*}
echo -e "Enter title\c"
read tmp
cdtitle=${tmp%%,*}
echo -e "Enter type\c"
read tmp
cdtype=${tmp%%,*}
echo -e "Enter artist/composer \c"
read tmp
cdac=${tmp%%,*}
echo "About to add new entry"
echo "$cdcatnum $cdtitle $cdtype $cdac"
if get_confirm; then
insert_title $cdcatnum,$cdtitle,$cdtype,$cdac
add_record_tracks
else
remove_records
fi
return
}
#查找唱片函数
find_cd(){
if [ "$1" = "n" ]; then
asklist=n
else
asklist=y
fi
cdcatnum=""
echo -e "Enter a string to search for in the CD titles \c"
read searchstr
if [ "$searchstr" = "" ]; then
return 0
fi
grep "$searchstr" $title_file > $temp_file
set $(wc -l $temp_file)
linesfound=$1
case "$linesfound" in
0) echo "Sorry, nothing found"
get_return
return 0 ;;
1) ;;
2) echo "Sorry, not unique."
echo "Found the following"
cat $temp_file
get_return
return 0
esac
IFS=","
read cdcatnum cdtitle cdtype cdac < $temp_file
IFS=" "
if [ -z "$cdcatnum" ]; then
echo "Sorry, could not extract catalog field from $temp_file"
get_return
return 0
fi
echo
echo catalog number: $cdcatnum
echo Title: $cdtitle
echo Type: $cdtype
echo Artist: $cdac
echo
get_return
if [ "$asklist" = "y" ]; then
echo -e "View tracks for this CD ? \c"
read x
if [ "$x" ="y" ]; then
echo
list_tracks
echo
fi
fi
return 1
}
#更新唱片信息
update_cd(){
if [ -z "$cdcatnum" ]; then
echo "You must select a CD first"
find_cd n
fi
if [ -n "$cdcatnum" ]; then
echo "Current tracks are: -"
list_tracks
echo
echo "This will re-enter teh tracks for $cdtitle"
get_confirm && {
grep -v "^${cdcatnum}," $tracks_file > $temp_file
mv $temp_file $tracks_file
echo
add_record_tracks
}
fi
return
}
#统计唱片数和曲目数
count_cds(){
set $(wc -l $title_file)
num_titles=$1
set $(wc -l $tracks_file)
num_tracks=$1
echo found $num_titles CDs, with a total of $num_tracks tracks
get_return
return
}
#删除记录信息
remove_records(){
if [ -z "$cdcatnum" ]; then
echo You must select a CD first
find_cd n
fi
if [ -n "$cdcatnum" ]; then
echo "You are about to delete $cdtitle"
get_confirm &&{
grep -v "^${cdcatnum}," $title_file > $temp_file
mv $temp_file $title_file
grep -v "^${cdcatnum}," $tracks_file > $temp_file
mv $temp_file $tracks_file
cdcatnum=""
echo Entry removed
}
get_return
fi
return
}
#列出曲目
list_tracks(){
if [ "$cdcatnum" = "" ]; then
echo no CD selected yet
return
else
grep "^${cdcatnum}," $tracks_file > $temp_file
num_tracks=$(wc -l $temp_file)
if [ "$num_tracks" = "0" ]; then
echo no tracks found for $cdtitle
else {
echo
echo "$cdtitle: -"
echo
cut -f 2- -d , $temp_file
echo
} | ${PAGER: -more}
fi
fi
get_return
return
}
#主程序部分
rm -f $temp_file
if [ ! -f $title_file ]; then
touch $title_file
fi
if [ ! -f #tracks_file ]; then
touch $tracks_file
fi
clear
echo
echo
echo "Mini CD manager"
sleep 3
quit=n
while [ "$quit" != "y" ];
do
set_menu_choice
case "$menu_choice" in
a) add_records;;
r) remove_records;;
f) find_cd y;;
u) update_cd;;
c) count_cds;;
l) list_tracks;;
b)
echo
more $title_file
echo
get_return;;
q |Q) quit=y;;
*) echo "Sorry, choice not recognized";;
esac
done
rm -f $temp_file
echo "Finished"
exit 0

复制代码

================================================================

运行脚本后，报错如下：
[root@GZH gzh]# sh cdmanager
cdmanager: line 287: unexpected EOF while looking for matching `"'
cdmanager: line 298: syntax error: unexpected end of file

帮忙看下？什么问题？(注意：出错行cdmanager: line 287:——在倒数第二行！！）