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wkhtmltopdf: cannot connect to X server
...ne) version of the program and it works great! I would put the executable file in a folder, and run:
21 Answers
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
...his blog post from Mike Ash on subclassing a class cluster.
Include those files in your project, then generate any types you wish by using macros:
MyArrayTypes.h
CUSTOM_ARRAY_INTERFACE(NSString)
CUSTOM_ARRAY_INTERFACE(User)
MyArrayTypes.m
CUSTOM_ARRAY_IMPLEMENTATION(NSString)
CUSTOM_ARRAY_IMPL...
how to check redis instance version?
...:10
lru_clock:15766886
executable:/tmp/redis-5.0.5/src/redis-server
config_file:
# Clients
connected_clients:22
....More Verbose
The version lies in the second line :)
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How to make the 'cut' command treat same sequental delimiters as one?
...e readers. Explanations are at the Test section.
tr | cut
tr -s ' ' < file | cut -d' ' -f4
awk
awk '{print $4}' file
bash
while read -r _ _ _ myfield _
do
echo "forth field: $myfield"
done < file
sed
sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' file
Tests
Given this file, let's t...
How to debug Visual Studio extensions
...t to the devenv.exe binary. On my machine it's located at
C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe
On a non x64 machine though you can remove the " (x86)" portion.
Then set the command line arguments to /rootsuffix Exp. This tells Visual Studio to use th...
Can a JSON value contain a multiline string
I am writing a JSON file which would be read by a Java program. The fragment is as follows...
5 Answers
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Error in SQL script: Only one statement is allowed per batch
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I have found the problem. When I added the file in VS I forgot to set Build Action = None from the file properties. So changing that fixed the problem and the project now compiles.
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How to Diff between local uncommitted changes and origin
Let's say I cloned a repository and started modifying files. I know that if I have local uncommitted changes, I can do a diff as follows git diff test.txt and it will show me the difference between the current local HEAD and the modified, uncommitted changes in the file. If I commit those changes ...
Using sed and grep/egrep to search and replace
...matching lines using extended regular expressions
-l: only list matching filenames
-R: search recursively through all given directories
-Z: use \0 as record separator
"\.jpg|\.png|\.gif": match one of the strings ".jpg", ".gif" or ".png"
.: start the search in the current directory
xargs: execute...
With Git, how do I turn off the “LF will be replaced by CRLF” warning
...
I used this way:
Save your current files in Git, so that none of your work is lost.
git add . -u
git commit -m "Saving files before refreshing line endings"
Remove every file from Git's index.
git rm --cached -r .
Rewrite the Git index to pick up...