删除csv文件的第一列

Question

我想知道如何使用awk或sed删除csv文件的第一列

像这样的东西：

FIRST,SECOND,THIRD

对于这样的事情

SECOND,THIRD

提前致谢

Answer 1

跟随awk将同样帮助您。

awk '{sub(/[^,]*/,"");sub(/,/,"")} 1'   Input_file

遵循sed可能也有帮助。

sed 's/\([^,]*\),\(.*\)/\2/'  Input_file

说明：

awk '                 ##Starting awk code here.
{
  sub(/[^,]*/,"")     ##Using sub for substituting everything till 1st occurence of comma(,) with NULL.
  sub(/,/,"")         ##Using sub for substituting comma with NULL in current line.
}
1                     ##Mentioning 1 will print edited/non-edited lines here.
'   Input_file        ##Mentioning Input_file name here.