大约有 1,832 项符合查询结果（耗时：0.0276秒） [XML]
Changing the selected option of an HTML Select element
...;
break;
}
}
}
<select id="sel">
<option>Cat</option>
<option>Dog</option>
<option>Fish</option>
</select>
<button id="btn">Select Fish</button>
jQuery
But if you really want to use jQuery:
var val...
Mac OS X Terminal: Map option+delete to “backward delete word”
...cOS High Sierra 10.13.6, captured on October 23, 2018.
Notes
Many applications (including bash and tcsh) treat Meta-Delete as "backward delete word."
share
|
improve this answer
|
...
Backup/Restore a dockerized PostgreSQL database
...stgres > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql
Restore your databases
cat your_dump.sql | docker exec -i your-db-container psql -U postgres
share
|
improve this answer
|
...
How to base64 encode image in linux bash / shell
...
You need to use cat to get the contents of the file named 'DSC_0251.JPG', rather than the filename itself.
test="$(cat DSC_0251.JPG | base64)"
However, base64 can read from the file itself:
test=$( base64 DSC_0251.JPG )
...
Docker - how can I copy a file from an image to a host?
... then copy the file from the container.
However, if your image contains a cat command (and it will do in many cases), you can do it with a single command:
docker run --rm --entrypoint cat yourimage /path/to/file > path/to/destination
If your image doesn't contain cat, simply create a contain...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...ple is good, it shows how to use an image as a "binary". When using ["/bin/cat"] as entrypoint and then doing docker run img /etc/passwd, you get it, /etc/passwd is the command and is passed to the entrypoint so the end result execution is simply /bin/cat /etc/passwd.
Another example would be to ha...
In log4j, does checking isDebugEnabled before logging improve performance?
I am using Log4J in my application for logging. Previously I was using debug call like:
16 Answers
...
How do I view an older version of an SVN file?
...on:
svn update -r 666 file
Or you can just view the file directly:
svn cat -r 666 file | less
share
|
improve this answer
|
follow
|
...
What is the difference between a symbolic link and a hard link?
...e two files:
$ touch foo; touch bar
Enter some Data into them:
$ echo "Cat" > foo
$ echo "Dog" > bar
(Actually, I could have used echo in the first place, as it creates the files if they don't exist... but never mind that.)
And as expected:
$cat foo; cat bar
Cat
Dog
Let's create hard...
How do you run a command for each line of a file?
...use there is not only 1 answer...
shell command line expansion
xargs dedicated tool
while read with some remarks
while read -u using dedicated fd, for interactive processing (sample)
Regarding the OP request: running chmod on all targets listed in file, xargs is the indicated tool. But for some ...