大约有 1,824 项符合查询结果（耗时：0.0105秒） [XML]
using awk with column value conditions
...
please try this
echo $VAR | grep ClNonZ | awk '{print $3}';
or
echo cat filename | grep ClNonZ | awk '{print $3}';
share
|
improve this answer
|
follow
...
.gitignore after commit [duplicate]
...the files.
Note In the presence of tags, always use the --tag-name-filter cat option to git filter-branch. It never hurts and will save you the head-ache when you realize later taht you needed it
share
|
...
sed whole word search and replace
...
\b in regular expressions match word boundaries (i.e. the location between the first word character and non-word character):
$ echo "bar embarassment" | sed "s/\bbar\b/no bar/g"
no bar embarassment
share
...
Get the current time in C
... parameter works to return the current time.
– Super Cat
Dec 21 '15 at 0:30
...
What is the Python 3 equivalent of “python -m SimpleHTTPServer”
...
Using 2to3 utility.
$ cat try.py
import SimpleHTTPServer
$ 2to3 try.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skippi...
How to solve WAMP and Skype conflict on Windows 7? [closed]
...d Oct 10 '12 at 19:57
The Unfun Cat
20.5k2222 gold badges8686 silver badges114114 bronze badges
answered Jul 6 '12 at 6:46
...
Delete all lines beginning with a # from a file
...th some extension:
ll -ltr *.filename_extension > list.lst
for i in $(cat list.lst | awk '{ print $8 }') # validate if it is the 8 column on ls
do
echo $i
sed -i '/^#/d' $i
done
share
|
...
Printing the last column of a line in a file
...
Using Perl
$ cat rayne.txt
A1 123 456
B1 234 567
C1 345 678
A1 098 766
B1 987 6545
C1 876 5434
$ perl -lane ' /A1/ and $x=$F[2] ; END { print "$x" } ' rayne.txt
766
$
...
Uniq by object attribute in Ruby
...e of a Hash to enforce uniqueness. Here's a couple more ways to skin that cat:
objs.inject({}) {|h,e| h[e.attr]=e; h}.values
That's a nice 1-liner, but I suspect this might be a little faster:
h = {}
objs.each {|e| h[e.attr]=e}
h.values
...
What does “export” do in shell programming? [duplicate]
... Yes - because they are copied for use by the subshell. And thus any modification in the subshell will have no effect as the copy is dropped on return-from-subshell: Subshells, environment variables, and scope. The same happens for environment variables: the are copied - but for any kind of subproce...