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How to use sed to replace only the first occurrence in a file?
...the 0 with a 1, so: sed '1,/RE/s//to_that/' file
– mhost
Oct 5 '14 at 1:24
13
Could somebody plea...
How to restart Activity in Android
...trying to promote your answer, but you're misusing the system for that purpose.
– EboMike
May 12 '11 at 16:44
8
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Remove carriage return in Unix
...000 h e l l o \r \n g o o d b y e \n
0000017
dos2unix is the way to go if it's installed on your system:
$ cat infile | dos2unix -U | od -c
0000000 h e l l o \n g o o d b y e \n
0000016
If for some reason dos2unix is not available to you, the...
How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
...hown in Lawrence's answer
Third party extensions (not really necessary in most of the cases, could be an overkill)
Here is how you search XPath in Elements panel:
Press F12 to open Chrome Developer Tool
In "Elements" panel, press Ctrl+F
In the search box, type in XPath or CSS Selector, if elemen...
How to handle back button in activity
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"finish()" closes your current activity only. You need to handle going back to your previous activity by using intent. Btw, your previous activity should still be open if you did not "finish()" it when navigating from it previously.
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Check status of one port on remote host [closed]
I need a command line that can check the port status on a remote host. I tried ping xxx.xxx.xxx.xxx:161 but it doesn't recognize the "host". I thought it was a "good" answer until I did the same command against a host I know has that port open. This is for a batch file on Windows that will chec...
Why do we need the “finally” clause in Python?
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You can use finally to make sure files or resources are closed or released regardless of whether an exception occurs, even if you don't catch the exception. (Or if you don't catch that specific exception.)
myfile = open("test.txt", "w")
try:
myfile.write("the Answer is: ")
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How to scp in Python?
What's the most pythonic way to scp a file in Python? The only route I'm aware of is
14 Answers
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Eclipse: How do i refresh an entire workspace? F5 doesn't do it
... Problem with this is though, that if any of my projects are closed (which is all the time), the Refresh option does not appear. The only way Ctrl+A followed by F5 works for me is if all my projects are open.
– Matt
Feb 21 '11 at 10:19
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Running a command in a Grunt Task
...cts) in my project. I've created a custom tag and I am wondering if it is possible to run a command into it.
6 Answers
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