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Echo tab characters in bash script
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Do you happen to know, why echo -e does not work from Makefiles?
– dma_k
Oct 17 '10 at 0:01
24
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rsync: difference between --size-only and --ignore-times
...ore transferring data. Notably, this means the static checksum is distinct from the stream checksum - the later is computed while transferring data.
By default, rsync uses only 1 and 2. Both 1 and 2 can be acquired together by a single stat, whereas 3 requires reading the entire file (this is indep...
Static function variables in Swift
... ba() again, the inner function returns 1 on first call. This is different from a static variable.
– nhgrif
Nov 16 '14 at 14:55
2
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Passing arguments to an interactive program non-interactively
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Many ways
pipe your input
echo "yes
no
maybe" | your_program
redirect from a file
your_program < answers.txt
use a here document (this can be very readable)
your_program << ANSWERS
yes
no
maybe
ANSWERS
use a here string
your_program <<< $'yes\nno\nmaybe\n'
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Sorting a tab delimited file
...mode of literal tab entry.
Beware, though, because copying and pasting from another place generally does not preserve tabs.
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Git branch diverged after rebase
...e different commits with different hashes. If other developers are working from the pre-rebased branch then doing a git push -f would be extremely disruptive to their workflow. Thus, since this branch has been pushed to a public source he should have merged.
– awolf
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Add new field to every document in a MongoDB collection
...({}, {"$set": {"new_field": "value"}}, upsert=False, array_filters=None)
From documents
update_many(filter, update, upsert=False, array_filters=None, bypass_document_validation=False, collation=None, session=None)
filter: A query that matches the documents to update.
update: The modifications...
How to get a substring between two strings in PHP?
...e strings are different (ie: [foo] & [/foo]), take a look at this post from Justin Cook.
I copy his code below:
function get_string_between($string, $start, $end){
$string = ' ' . $string;
$ini = strpos($string, $start);
if ($ini == 0) return '';
$ini += strlen($start);
$len...
Edit line thickness of CSS 'underline' attribute
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In that case you have to wrap the text from each line, before and after the line-break with <span> and apply the border-bottom in there. It's a workaround that could be painful in non-hardcoded scenarios though.
– Fabián
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How can I redirect the output of the “time” command?
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If you don't want to mix output from time and the command.
With GNU time, you can use -o file like:
/usr/bin/time -o tim grep -e k /tmp 1>out 2>err
while tim is output of time, out and err are stdout and stderr from grep.
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