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Meaning of “[: too many arguments” error from if [] (square brackets)
...nds contain both of two words):
find /usr/share/doc -name '*.txt' | while read file; do \
a1=$(grep -H "description" $file); \
a2=$(grep -H "changes" $file); \
[ ! -z "$a1" -a ! -z "$a2" ] && echo -e "$a1 \n $a2" ; \
done
Edit 12 Aug 2013: related problem note:
Note that when c...
Standardize data columns in R
...a lot when a chain is very long since f(g(h(i(j(x))))) can be very hard to read.
– akhmed
Jun 24 '15 at 18:32
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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...
This bug has been sitting on bugs.mysql.com since 2007 and this thread is mainly just a parroting of all those wrong answers even up to a year ago.
According to the MySQL documentation, commands like CREATE USER, GRANT, REVOKE, and DROP USER do not require a subsequent FLUSH PRIVILEGES com...
How to find the largest file in a directory and its subdirectories?
...
for the first one, how do you get the size in a human readable format?
– Bluz
Oct 18 '16 at 15:54
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How to serve static files in Flask
...ut I could not get those to work. In the meantime, I am opening the files, reading content, and rigging up a Response with appropriate mimetype:
...
Is the C# static constructor thread safe?
In other words, is this Singleton implementation thread safe:
10 Answers
10
...
How to revert a merge commit that's already pushed to remote branch?
... Wed Aug 17 22:49:41 2011 +0100
Merge branch 'gh-pages'
Conflicts:
README
In this situation, git revert 8f937c6 -m 1 will get you the tree as it was in 8989ee0, and git revert -m 2 will reinstate the tree as it was in 7c6b236.
To better understand the parent IDs, you can run:
git log 898...
How to “log in” to a website using Python's Requests module?
...irez I don't think this is the right place for you to seek help. I suggest reading question about you challenge specifically like: stackoverflow.com/questions/21928368/… and if you can't solve it open your own question.
– Sebastian
Jul 23 '15 at 9:35
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Better techniques for trimming leading zeros in SQL Server?
...pty string to zero, which is wrong when it is supposed to remain blank.
Re-read the original question. This answers what the Questioner wants.
Solution #1:
--This example uses both Leading and Trailing zero's.
--Avoid losing those Trailing zero's and converting embedded spaces into more zeros.
--...
No Multiline Lambda in Python: Why not?
...d by adding an extra set of parens, something that exists in many places already, e.g. generator expressions surrounded by other arguments, calling a method on an integer literal (although this need not be the case since a function name can't begin with a digit), and of course single-line lambdas as...