使用sed或其他命令行工具转义CSV文件

Question

我有以下CSV，用＆＃34; |＆＃34;。

分隔

101|abc|this is desc|2017
102|xyz|"thie is a long desc
des for xyz continue here."|2017

我有两条记录101和102。 102记录分为2行。如何使用sed或其他命令行工具使用＆＃34; /＆＃34;来转义新行字符？

Answer 1

对于您的具体情况，您可以使用此功能。

$ cat lll 101|abc|this is desc|2017 102|xyz|"thie is a long desc des for xyz continue here."|2017 105|xyz|"thie is a long desc des for xyz continue here."|2017 101|abc|this is desc|2017 101|abc|this is desc|2017 101|abc|this is desc|2017 105|xyz|"thie is a long desc des for xyz continue here."|2017

$ perl -F'\n' -ane 'BEGIN{our $line_to_join = undef; } foreach ( @F) { if (/[a-z]+$/) { $line_to_join = $_; } elsif ($line_to_join){ print $line_to_join,"/\n",$_,"\n"; $line_to_join = undef; }else{print $_,"\n" ; $line_to_join = undef;}} ;' < lll

输出：

101|abc|this is desc|2017 102|xyz|"thie is a long desc/ des for xyz continue here."|2017 105|xyz|"thie is a long desc/ des for xyz continue here."|2017 101|abc|this is desc|2017 101|abc|this is desc|2017 101|abc|this is desc|2017 105|xyz|"thie is a long desc/ des for xyz continue here."|2017

Answer 2

awk是处理此问题的更好工具。

假设您知道每行需要多少列。您可以使用此awk命令：

awk -v n=4 -F '|' 'p+NF<n{p+=NF-1; print $0 "\\"; next} {p=0} 1' file

101|abc|this is desc|2017
102|xyz|"this is a long desc\
des for xyz continue here."|2017

Answer 3

.mat