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How do I list all cron jobs for all users?
...hp5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm
47 */8 * * * root rsync -axE --delete --ignore-errors / /mirror/ >/dev/null
17 1 * * * root /etc/cron.daily/apt
17 1 * * * root /etc/cron.daily/apti...
Stock ticker symbol lookup API [closed]
...milion/Modules/StockQuoter/StockQuoter.py
The current price ("l") is real-time and the delay is on par with Yahoo Finance. There are a few quirks you should be aware of. A handful of stocks require an exchange prefix. For example, if you query "BTIM", you'll get a "Bad Request" error but "AMEX:B...
Why is @autoreleasepool still needed with ARC?
... then you'd be releasing 100000000 objects later on rather than 10000 each time round the outer for-loop.
Update:
Also see this answer - https://stackoverflow.com/a/7950636/1068248 - for why @autoreleasepool is nothing to do with ARC.
Update:
I took a look into the internals of what's going on her...
How do I change my Ruby version using RVM?
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Yeah its working. But every time I restart my machine I have to give above mentioned commands. If I do not provide the commands it says rvm is not a function.
– Apurva Mayank
Mar 22 '12 at 5:42
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How to search and replace globally, starting from the cursor position and wrapping around the end of
... pattern from the top (where it was at the moment of pressing q the second time). The latter leaves the cursor at the last occurrence that was replaced (just before the first q was pressed).
– ib.
Mar 20 '14 at 21:40
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What does “javascript:void(0)” mean?
I've seen such href s many times, but I don't know what exactly that means.
14 Answers
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How to use sed to replace only the first occurrence in a file?
...pression #1, char 0: no previous regular expression (GNU), because, at the time the 1st line is being processed (due to line number 1 starting the range), no regex has been applied yet, so // doesn't refer to anything.
With the exception of GNU sed's special 0,/re/ syntax, any range that starts with...
Find a pair of elements from an array whose sum equals a given number
...y element into a hash table (without sorting). This takes O(n) as constant time insertion.
Then for every x,
we can just look up its complement, T-x, which is O(1).
Overall the run time of this approach is O(n).
You can refer more here.Thanks.
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How to define hash tables in Bash?
...re to another list of keys, instead of O(n) with proper hashmaps (constant time lookup, O(1) for a single key).
– CodeManX
Aug 23 '15 at 19:01
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How can I parse a YAML file from a Linux shell script?
...r my use case, since it answered the question better than any other at the time. This can definitely be expanded.
– Curtis Blackwell
Nov 27 '13 at 13:37
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