大约有 43,000 项符合查询结果（耗时：0.0333秒） [XML]
get just the integer from wc in bash
...
You can use the cut command to get just the first word of wc's output (which is the line or word count):
lines=`wc -l $f | cut -f1 -d' '`
words=`wc -w $f | cut -f1 -d' '`
...
Regular Expression: Any character that is NOT a letter or number
...h anything other than letter or number you could try this:
[^a-zA-Z0-9]
And to replace:
var str = 'dfj,dsf7lfsd .sdklfj';
str = str.replace(/[^A-Za-z0-9]/g, ' ');
share
|
improve this answer
...
how to read all files inside particular folder
...
@user001 because usually the IDE can find and add such things for you - just press ctrl+.
– Marc Gravell♦
Nov 30 '15 at 15:58
1
...
Reload activity in Android
Is it a good practice to reload an Activity in Android ?
18 Answers
18
...
Eclipse error “ADB server didn't ACK, failed to start daemon”
...Step 1:
CTRL+Shift+Esc to open the task manager, which has adb.exe process and end (kill) that process
Step 2:
Now, close the eclipse, which is currently running on my computer.
Step 3:
Again, restart eclipse then solved that problem.
For those using OS X
killall adb
For those using Windows
...
get UTC time in PHP
...i I'm unable to repeat your described behaviour. (My machine is not on GMT and my UNIX timestamps are correct. Also gmdate("U") == time().) Sounds like potentially buggy behaviour. Double check and file a bug with the PHP project.
– nikc.org
Feb 24 '16 at 5:59
...
Java, Simplified check if int array contains int
...
ArrayUtils is a thing of past. Java 8+ and Guava have pretty amazing goodies!!
– TriCore
May 13 '17 at 23:41
add a comment
...
Omitting the second expression when using the if-else shorthand
Can I write the if else shorthand without the else ?
8 Answers
8
...
Find files and tar them (with spaces)
...ne except if the files have spaces in them. This is how I'm finding files and adding them to a tar archive:
9 Answers
...
How to install PostgreSQL's pg gem on Ubuntu?
...ting extended state information... Done (Reading database ... 166183 files and directories currently installed.) Removing bison ... Removing libnss3-dev ... Removing libnspr4-dev ... Removing libqt4-core ... Removing libqt4-test ... Removing libsqlite3-dev ... Processing triggers for man-db ..
...