如何逐行比较两个文件并在不同时输出整行

Question

我有两个排序文件有问题

1)one is a control file(ctrl.txt) which is external process generated
2)and other is line count file(count.txt) that I generate using `wc -l`

$更多ctrl.txt

Thunderbird|1000
Mustang|2000
Hurricane|3000

$更多count.txt

Thunder_bird|1000
MUSTANG|2000
Hurricane|3001

我想比较这两个文件，忽略第 1 列（文件名）中的皱纹，例如 "_"（对于 Thunder_bird）或 "upper case"（对于 MUSTANG）以便我的输出仅显示下面的文件作为唯一真正的不同文件，其计数不匹配。

Hurricane|3000

我的想法是只比较两个文件的第二列，如果它们不同则输出整行

我在 AWK 中看到过其他示例，但我无法使用任何东西。

Answer 1

能否请您尝试关注 awk 如果这对您有帮助，请告诉我。

awk -F"|" 'FNR==NR{gsub(/_/,"");a[tolower()]=;next} {gsub(/_/,"")} ((tolower() in a) && !=a[tolower()])' cntrl.txt count.txt

现在也添加了一种非线性形式的解决方案。

awk -F"|" '
FNR==NR{
  gsub(/_/,"");
  a[tolower()]=;
  next}
{ gsub(/_/,"") }
((tolower() in a) && !=a[tolower()])
' cntrl.txt count.txt

说明： 上面的代码也在这里添加说明。

awk -F"|" '                                ##Setting field seprator as |(pipe) here for all lines in Input_file(s).
FNR==NR{                                   ##Checking condition FNR==NR which will be TRUE when first Input_file(cntrl.txt) in this case is being read. Following instructions will be executed once this condition is TRUE.
  gsub(/_/,"");                            ##Using gsub utility of awk to globally subtitute _ with NULL in current line.
  a[tolower()]=;                       ##Creating an array named a whose index is first field in LOWER CASE to avoid confusions and value is  of current line.
  next}                                    ##next is awk out of the box keyword which will skip all further instructions now.(to make sure they are read when 2nd Input-file named count.txt is being read).
{ gsub(/_/,"") }                           ##Statements from here will be executed when 2nd Input_file is being read, using gsub to remove _ all occurrences from line.
((tolower() in a) && !=a[tolower()]) ##Checking condition here if lower form of  is present in array a and value of current line  is NOT equal to array a value. If this condition is TRUE then print the current line, since I have NOT given any action so by default printing of current line will happen from count.txt file.
' cntrl.txt count.txt                      ##Mentioning the Input_file names here which we have to pass to awk.

如何逐行比较两个文件并在不同时输出整行

How to Compare two files line by line and output the whole line if different

bash

shell

awk

text-processing