Question

我正在尝试有选择地删除以array2开头但不包含关键字<?php foreach($array1 as $index => $val) { foreach($array2 as $index2 => $val2){?> //here i want to compare $val with $val2 to check $val2 is not empty or not <?php } }?>或Globals.ThisAddIn.Application.ActiveCell.Formula = "=zAirAtmTPFC()"; Globals.ThisAddIn.Application.Dialogs[Excel.XlBuiltInDialog.xlDialogFunctionWizard].Show();的行。不以#开头的行未更改。我可以使用第一个Build删除以Type开头的所有行，但不确定如何有选择地删除以#开头但不包含关键字的行。第二个#执行但只留下两行（#CN过滤器： #Flags = 1,2,3）。谢谢你:)。

AWK

awk

AWK

输入 awk

awk '!/#/' input < out  # will remove all lines with #

所需的输出

awk '/#/ && !/Build|Length/' input < out  # remove lines starting with # but must not have Build or Length in them

Answer 1

您希望对以#开头并且不包含Build或Type的行执行某些操作，对吧？我相信你可以写下这个条件：

从# = /^#/
AND = &&
不包含Build或Type = !/Build|Type/

即

/^#/ && !/Build|Type/

现在，当条件成真时你想做什么？不打印当前行。所以你可以简单地写一下：

awk '/^#/ && !/Build|Type/{next} 1'

但如果您更喜欢使用awks默认打印给出真实条件，那么您只需要否定您的条件（a{next} 1 = !a）：

awk '!(/^#/ && !/Build|Type/)'

通过布尔代数（!(a && b) = !a || !b）可以简化为：

awk '!/^#/ || /Build|Type/'

Answer 2

$ awk '!/^#/ || /Build|Type/' file
#Build = NCBI Build 37
#  Type = Lowess
Length  Event   ID
1   Gain    xxx
10  Loss    yyy

如果要删除这些初始#字符及其后面的空格：

$ awk '!/^#/ || /Build|Type/ { sub("^#[[:blank:]]*", ""); print }' file
Build = NCBI Build 37
Type = Lowess
Length  Event   ID
1   Gain    xxx
10  Loss    yyy

Answer 3

关注awk也可以帮助您。

awk '!(/^#/ && !/Build/ && !/Type/){gsub(/^#|^# +/,"");print}'  Input_file

<强> 说明：

awk '
!(/^#/ && !/Build/ && !/Type/){  ##Checking condition here if a line starts with # and NOT having string Build and Type in it, Negating this condition to work it as opposite, if this condition is TRUE then do following.
  gsub(/^#|^# +/,"");            ##Using gsub to remove hash in starting of a line OR remove a hash starting fr a line with space with NULL in current line.
  print                          ##Printing the current line here.
}' Input_file                    ##Mentioning the Input_file name here.

Answer 4

sed解决方案：

insert into protector values('101','Dragon');
insert into protector values('102','Lion');

insert into master values('201','Fairy');

insert into player values('01','Joe','101','');
insert into player values('02','Elsa','102','201');

Answer 5

awk '!/CN|Fl/{sub(/\43/,"")sub(/^\s*/,"");print}' file

Build = NCBI Build 37
Type = Lowess
Length  Event   ID
1   Gain    xxx
10  Loss    yyy

awk删除以符号开头但没有关键字的行

5 个答案: