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Regular expression to match a word or its prefix
...ed the match or not. If you don't, better use the non-capture group to allocate more memory for calculation instead of storing something you will never need to use.
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unix - head AND tail of file
... file.txt
And if you need to uses pipes for some reason then like this:
cat file.txt | (head; tail)
Note: will print duplicated lines if number of lines in file.txt is smaller than default lines of head + default lines of tail.
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How to exit git log or git diff [duplicate]
... just printed to the terminal define the environment variable GIT_PAGER to cat or set core.pager to cat (execute git config --global core.pager cat).
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How to concatenate two IEnumerable into a new IEnumerable?
...same T ). I want a new instance of IEnumerable<T> which is the concatenation of both.
4 Answers
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How to add Git's branch name to the commit message?
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DESCRIPTION=$(git config branch."$NAME".description)
echo "$NAME"': '$(cat "$1") > "$1"
if [ -n "$DESCRIPTION" ]
then
echo "" >> "$1"
echo $DESCRIPTION >> "$1"
fi
Creates following commit message:
[branch_name]: [original_message]
[branch_description]
I'm using issu...
How to retrieve a single file from a specific revision in Git?
... <rev>
show a list of one or more 'blob' objects within a commit
git cat-file blob <file-SHA1>
cat a file as it has been committed within a specific revision (similar to svn
cat).
use git ls-tree to retrieve the value of a given file-sha1
git cat-file -p $(git-ls-tree $REV $file | cut -d...
How to take column-slices of dataframe in pandas
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2017 Answer - pandas 0.20: .ix is deprecated. Use .loc
See the deprecation in the docs
.loc uses label based indexing to select both rows and columns. The labels being the values of the index or the columns. Slicing with .loc includes the last element.
Let'...
How do I append text to a file?
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cat >> filename
This is text, perhaps pasted in from some other source.
Or else entered at the keyboard, doesn't matter.
^D
Essentially, you can dump any text you want into the file. CTRL-D sends an end-of-file signa...
How to find out line-endings in a text file?
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You can use the file utility to give you an indication of the type of line endings.
Unix:
$ file testfile1.txt
testfile.txt: ASCII text
"DOS":
$ file testfile2.txt
testfile2.txt: ASCII text, with CRLF line terminators
To convert from "DOS" to Unix:
$ dos2unix testf...
Is there replacement for cat on Windows
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Windows type command works similarly to UNIX cat.
Example 1:
type file1 file2 > file3
is equivalent of:
cat file1 file2 > file3
Example 2:
type *.vcf > all_in_one.vcf
This command will merge all the vcards into one.
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