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Remove blank lines with grep
... (-). (from the manual). Grep already expects a (basic) regular expression by default. For this pattern, you may leave out -e entirely: grep -v '^[[:space:]]*$' foo.txt.
– Yeti
Jul 1 at 10:22
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How to deal with INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES without uninstall?
...trying to test a new version of the app I ran into this error.
I fixed it by removing the app that was installed via Marketplace (just hold and drag to the trash). Thereafter I was able to deploy my development version without any issue.
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Request Monitoring in Chrome
...rk tab options (if not you can change that link to open in the same window by setting target='_self' ). Then, for example, you can see the response from the form that got submitted after it redirects you. Make sure to also notice the filter as the responses pile up on new page loads.
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Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
...to "Add to targets:", you may have said no, but you can add it at any time by doing what i said.
– Nicolas S
May 30 '13 at 6:13
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Run a string as a command within a Bash script
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To see all commands that are being executed by the script, add the -x flag to your shabang line, and execute the command normally:
#! /bin/bash -x
matchdir="/home/joao/robocup/runner_workdir/matches/testmatch/"
teamAComm="`pwd`/a.sh"
teamBComm="`pwd`/b.sh"
include="`...
How do I check whether a jQuery element is in the DOM?
...ro width and height element at zero top and zero left you can double check by iterating parents till the document.body
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How to check whether mod_rewrite is enable on server?
...ognized or no info about this module in phpinfo(); try to test mod rewrite by adding those lines in your .htaccess file:
RewriteEngine On
RewriteRule ^.*$ mod_rewrite.php
And mod_rewrite.php:
<?php echo "Mod_rewrite is activated!"; ?>
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Git serve: I would like it that simple
...k it's important to note that although git daemon allows for remote access by other git clients, it lacks the Web interface that hg serve provides.
– Rob Kennedy
Feb 25 '11 at 6:37
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IndentationError: unindent does not match any outer indentation level
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Thank you! What a great tip. Error was identified by flake8 in VS Code but it could not identify where the problem was -- tabnanny did in a microsecond.
– Steve
Sep 26 '19 at 22:45
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How to convert float to int with Java
... i = -2 ; f = -2.22 -> i = -2 ; f = -2.68 -> i = -3
note: this is, by contract, equal to (int) Math.floor(f + 0.5f)
truncate (i.e. drop everything after the decimal dot)
i = (int) f;
f = 2.0 -> i = 2 ; f = 2.22 -> i = 2 ; f = 2.68 -> i = 2
f = -2.0 -> i = -2 ; f = -2.2...