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How do I perform a Perl substitution on a string while keeping the original?
In Perl, what is a good way to perform a replacement on a string using a regular expression and store the value in a different variable, without changing the original?
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What linux shell command returns a part of a string? [duplicate]
...e any command that can be used for this purpose. I want to be able to do something like this...
substr "abcdefg" 2 3 - prints cde .
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How do I remove a single file from the staging area (undo git add)?
...tory (folder) from the staging area, use
git reset HEAD -- <directoryName>
Your modifications will be kept. When you run git status the file will once again show up as modified but not yet staged.
See the git reset man page for details.
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Can Android do peer-to-peer ad-hoc networking?
...o-peer wifi mode? For example, I would like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited.
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How to only get file name with Linux 'find'?
... files in directory, so I get a list of paths. However, I need only file names. i.e. I get ./dir1/dir2/file.txt and I want to get file.txt
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How can I fill out a Python string with spaces?
...3? Just wanted to add there is also rjust and center which work much the same way but for different alignments
– radtek
Jan 22 '15 at 13:37
21
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How do I trim whitespace from a string?
...l consecutive spaces? If the second, then strings already have a .strip() method:
>>> ' Hello '.strip()
'Hello'
>>> ' Hello'.strip()
'Hello'
>>> 'Bob has a cat'.strip()
'Bob has a cat'
>>> ' Hello '.strip() # ALL consecutive spaces at both ends removed
'Hel...
How to use random in BATCH script?
... Given the specific problem, you will very likely be using some kind of loop? Then you should indeed be using delayed expansion e.g. via SETLOCAL ENABLEDELAYEDEXPANSION and using !RANDOM! instead of %RANDOM%, like Eugene posted.
– mousio
Apr 25 '1...
Oracle query to fetch column names
...ot equivalent to a schema, neither do you have to provide the tablespace name.
Providing the schema/username would be of use if you want to query ALL_TAB_COLS or DBA_TAB_COLS for columns OF tables owned by a specific user. in your case, I'd imagine the query would look something like:
String sqlSt...
Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
...ther words, a totally clean re-install. Upon starting IRB, I received this message:
5 Answers
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