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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...
Can I comment out a line in a .git/config file?
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ChrisChris
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Putting a simple if-then-else statement on one line [duplicate]
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edited May 23 '17 at 12:10
Community♦
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answered May 10 '10 at 13:00
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How to add a footer to a UITableView in Storyboard
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107
Note that you can only do this if you have more than 0 prototype cells specified. Otherwise, the dragged-in view always becomes the header...
Plot correlation matrix into a graph
...trix
nrowcol <- length(ver)
cor <- matrix(runif(nrowcol*nrowcol, min=0.4), nrow=nrowcol, ncol=nrowcol, dimnames = list(hor, ver))
for (i in 1:nrowcol) cor[i,i] = 1
#Build the plot
rgb.palette <- colorRampPalette(c("blue", "yellow"), space = "rgb")
levelplot(cor, main="stage 12-14 array cor...
Why can't enum's constructor access static fields?
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answered Jan 14 '09 at 17:50
Jon SkeetJon Skeet
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Git: Set up a fetch-only remote?
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edited Apr 22 '15 at 20:31
gunr2171
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Referencing another schema in Mongoose
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edited Aug 1 '13 at 19:04
Gorkem Yurtseven
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Add more than one parameter in Twig path
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answered Apr 30 '12 at 10:55
Elnur AbdurrakhimovElnur Abdurrakhimov
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Percentage Height HTML 5/CSS
...of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘containing block’, which is the nearest ancestor to also be positioned.)
Alternatively, all modern browsers...