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Remove the last line from a file in Bash
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This is by far the fastest and simplest solution, especially on big files:
head -n -1 foo.txt > temp.txt ; mv temp.txt foo.txt
if You want to delete the top line use this:
tail -n +2 foo.txt
which means output lines starting at line 2.
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ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat
...on't forget all the other -vXX folders as well, or it'll work fine in your test env, only to bite you once someone uses one of those versions.
– falstro
Jan 20 '14 at 11:27
1
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How to throw an exception in C?
.... for example GetLastError() in windows API.
– BattleTested
Oct 2 '19 at 13:27
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How should equals and hashcode be implemented when using JPA and Hibernate
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public class Cat {
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public boolean equals(Object other) {
//Basic test / class cast
return this.catId==other.catId;
}
public int hashCode() {
int result;
return 3*this.catId; //any primenumber
}
}
Can gcc output C code after preprocessing?
...r-strong -Wformat -Wformat-security -o main.s
as -v --64 -o main.o main.s
Tested in Ubuntu 19.04 amd64, GCC 8.3.0.
CMake predefined targets
CMake automatically provides a targets for the preprocessed file:
make help
shows us that we can do:
make main.i
and that target runs:
Preprocessing C source...
Why doesn't Python have multiline comments?
...enotes a ending comment block as literally / will be printed. Go ahead and test this in C++. In fact SO's syntax highlighter will show that is valid. This is not a complex subject, it has existed for years in other languages. I would ask that you update your post to include the use of escape charact...
How to reset postgres' primary key sequence when it falls out of sync?
...ved and combined into a single query: SELECT setval('your_seq',(SELECT GREATEST(MAX(your_id)+1,nextval('your_seq'))-1 FROM your_table))
– Frunsi
Oct 27 '13 at 17:34
18
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log4net vs. Nlog
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Have a look at Logger.IsDebugEnabled in NLog versus Log4Net, from our tests, NLog has less overhead and that's what we are after (low-latency stuff).
Cheers,
Florian
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How can I launch multiple instances of MonoDevelop on the Mac?
...p my most important project open in "MonoDevelop", use "MonoDevelop-2" for testing ideas related to my main project, and "MonoDevelop-3" for random scratch.
When you alt-tab (open-Apple-tab (command-tab (whvr))), the name of the executable shows up beneath its icon in the application list, so, as l...
HTML table headers always visible at top of window when viewing a large table
...he table is scrolling off the top of the window? The example doesn't allow testing of those cases.
– Craig McQueen
Oct 10 '11 at 22:04
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