SED学习笔记[1]

将以\折行的文本转成正常的行

例如

1 2 3 4 \

  1 k 12

 ab \

 #c d \

 e

This line is unfolded

转成

1 2 3 4   1 k 12

 ab  #c d  e

  This line is unfolded

 

$cat unfold.sh

#! sed -f

sed -n '

    s/\\$//

    th

 

    # cat

    H; s/^.*$//; x;

    # Remove unexpected new lines

    s/\n//g; p; b

  

    # Hold the folded line

: h

    H

' $1