☰

Replace extra spaces, tab and new line between delimiter

tag-icon • tag-icon text-processing sed regular-expression
Replace extra spaces, tab and new line between delimiter

数据输出文件有多行记录，并用换行符分隔。在每一行中，列之间用分隔符分隔|。

尝试替换分隔符之间每列中的所有额外空格、制表符、换行符。每行数据以“&*”结尾

数据：

char1   |  char2 |
        char3|char  4 &*
char11
       |  char   12 |char13|char14 &*
char21           |  char22 |char23|  char24 &*

角色：

  • 需要删除尾随空格/制表符；然后
  • 如果行以 a 开头/结尾，则加入行|
  • 挤压重复的空格。
  • 在“&*”之后跳过新行

结果：

char1|char2|char3|char 4
char11|char 12|char13|char14
char21|char 22|char23|char24

Code what I have now is for replacing tab, need to change this to have new line and extra space.

sed  -i 's/[ \t]\+|/|/g' DataStats0914.txt

答案1

With GNU sed:

sed -E '
    :a /\s*&\*\s*$/ !{ N; s/\n//; ta; };
    # read "N"ext line and join (s/\n//) except "!" lines that ends with "&*" chars;
    s/&\*//g;
    # also remove these chars "&*" too 
    s/\s*\|\s*/|/g;
    # remove whitespaces around "|" char as well
' <(tr -s '\t ' ' ' <infile)

comments-free command below:

sed -E '
    :a /\s*&\*\s*$/ !{ N; s/\n//; ta; }; 
    s/&\*//g;       
    s/\s*\|\s*/|/g;
' <(tr -s '\t ' ' ' <infile)

相关内容