大约有 40,000 项符合查询结果（耗时：0.0338秒） [XML]
redirect COPY of stdout to log file from within bash script itself
...
echo "bar" >&2
Note that this is bash, not sh. If you invoke the script with sh myscript.sh, you will get an error along the lines of syntax error near unexpected token '>'.
If you are working with signal traps, you might want to use the tee -i option to avoid disruption of the output ...
Displaying the build date
...ome trivial code generation which probably is the first step in your build script already. That, and the fact that ALM/Build/DevOps tools help a lot with this and should be preferred to anything else.
I leave the rest of this answer here for historical purposes only.
The new way
I changed my mind...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
...NGINX config files so you can re-use them (that includes your init.d/nginx script)
yum install pcre pcre-devel openssl openssl-devel and any other necessary libs for building NGINX
Get the nginx_tcp_proxy_module from GitHub here https://github.com/yaoweibin/nginx_tcp_proxy_module and remember the fo...
Fast Linux File Count for a large number of files
...m0.109s
user 0m0.070s
sys 0m0.044s
I also would like to have some script to ask the file system directly without all the unnecessary information.
tests based on answer of Peter van der Heijden, glenn jackman and mark4o.
Thomas
...
Why use make over a shell script?
Make seems to me simply a shell script with slightly easier handling of command line arguments.
5 Answers
...
Python argparse: default value or specified value
...u only need to use the default argument to add_argument as in this test.py script:
import argparse
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--example', default=1)
args = parser.parse_args()
print(args.example)
test.py --example
% 1
tes...
How to detect Adblock on my website?
...ds = true;
Then somewhere in my page:
<html>
<head>
<script src="/js/prebid-ads.js"></script>
</head>
<body>
<script>
if( window.canRunAds === undefined ){
// adblocker detected, show fallback
showFallbackImage();
}...
How to make JavaScript execute after page load?
I'm executing an external script, using a <script> inside <head> .
23 Answers
...
How to tell if a string is not defined in a Bash shell script
...se it echoes nothing) "VAR is set but its value might be empty". Try this script:
(
unset VAR
if [ -z "${VAR+xxx}" ]; then echo JL:1 VAR is not set at all; fi
if [ -z "${VAR}" ]; then echo MP:1 VAR is not set at all; fi
VAR=
if [ -z "${VAR+xxx}" ]; then echo JL:2 VAR is not set at all; fi
if [ ...
Best way to store JSON in an HTML attribute?
...to attribute sizes.
If you do run into them, then store the data in a <script>. Define an object and map element ids to property names in that object.
What if the JSON contains special characters? (e.g. {test: '<"myString/>'})
Just follow the normal rules for including untrusted d...