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How to check if a file contains a specific string using Bash
...n't need the string displayed when it was found.
The grep command returns 0 or 1 in the exit code depending on
the result of search. 0 if something was found; 1 otherwise.
$ echo hello | grep hi ; echo $?
1
$ echo hello | grep he ; echo $?
hello
0
$ echo hello | grep -q he ; echo $?
0
You can sp...
What is the closest thing Windows has to fork()?
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answered Jun 12 '09 at 7:07
Laurynas BiveinisLaurynas Biveinis
10.3k33 gold badges4747 silver badges6161 bronze badges
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JavaScript arrays braces vs brackets
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edited Nov 6 '13 at 17:02
Ben_Coding
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answered Feb 26 '11 at 20:...
Mac OSX Lion DNS lookup order [closed]
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10 Answers
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Active
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Why does git revert complain about a missing -m option?
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CB BaileyCB Bailey
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Should you always favor xrange() over range()?
...original)
+++ range_test.py (refactored)
@@ -1,7 +1,7 @@
for x in range(20):
- a=range(20)
+ a=list(range(20))
b=list(range(20))
c=[x for x in range(20)]
d=(x for x in range(20))
- e=xrange(20)
+ e=range(20)
As you can see, when used in a for loop or comprehension, or ...
How to construct a set out of list items in python?
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answered Apr 2 '13 at 16:02
mgilsonmgilson
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How to set 'auto' for upper limit, but keep a fixed lower limit with matplotlib.pyplot
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109
You can pass just left or right to set_xlim:
plt.gca().set_xlim(left=0)
For the y axis, use ...
Gets byte array from a ByteBuffer in java
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108
Depends what you want to do.
If what you want is to retrieve the bytes that are remaining (betw...
document.getElementById vs jQuery $()
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1035
Not exactly!!
document.getElementById('contents'); //returns a HTML DOM Object
var contents ...