1 #!/bin/bash
2 set -x
3 #del.lines
4 #script takes filename(s) and deletes all blanks
5
6 TEMP_F=/temp/del.lines.$$
7
8 usage()
9 {
10 #usage
11 echo "Usage:`basename $0` file[file..]"
12 echo "try `basename $0` -help for more infomation"
13 exit 1
14 }
15
16 if [ $# -eq 0 ];then
17 usage
18 fi
19
20 FILES=$1
21 echo $FILES
22 echo $#
23 while [ $# -gt 0 ]
24 do
25 echo "..$1"
26 case $1 in
27 -help) cat << MAYDAY
28 Use this script to delete all blank lines
29 MAYDAY
30 exit 0
31 ;;
32
33 *) FILE_NAME =$1
34
35 if [ -f $1 ]; then
36 sed `/^$/d` $FILE_NAME > $TEMP_F
37 mv $TEMP_F $FILE_NAME
38 else
39 echo "`basnename $0` cannot find this file :$1"
40 fi
41 ;;
42 shift
43 esac
44 done
错误：./del.lines: 行 44: 警告: 立即文档在第 27 行被文件结束符分隔 (需要 `MAYDAY')
./del.lines: 行 45: 语法错误: 未预期的文件结尾
