大约有 3,000 项符合查询结果（耗时：0.0130秒） [XML]
Shell script while read line loop stops after the first line
...
Very useful, helped me to run this zsh oneliner: cat hosts | while read host ; do ssh $host do_something ; done
– rat
Jan 2 '18 at 16:43
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How can I make my own base image for Docker?
...he tar file to other docker system if not installed locally and import it
cat centos6-base.tar | docker import - centos6-base
Now you can verify by running it.
docker run -i -t centos6-base cat /etc/redhat-release
The scripts from dotcloud combine first two steps together which make me confus...
Repair all tables in one go
...to print REPAIR SQL statments for all tables inside a database:
select concat('REPAIR TABLE ', table_name, ';') from information_schema.tables
where table_schema='mydatabase';
After that copy all the queries and execute it on mydatabase.
Note: replace mydatabase with desired DB name
...
Get selected option text with JavaScript
... <option value="98">dog</option>
<option value="7122">cat</option>
<option value="142">bird</option>
</select>
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Using SSH keys inside docker container
...tion:
Build command
$ docker build -t example --build-arg ssh_prv_key="$(cat ~/.ssh/id_rsa)" --build-arg ssh_pub_key="$(cat ~/.ssh/id_rsa.pub)" --squash .
Dockerfile
FROM python:3.6-slim
ARG ssh_prv_key
ARG ssh_pub_key
RUN apt-get update && \
apt-get install -y \
git \
...
Returning 'IList' vs 'ICollection' vs 'Collection'
...<T> but not the non-generic ICollection, then calling IEnumerable<Cat>.Count() on a Thing<Cat> would be fast, but calling IEnumerable<Animal>.Count() would be slow (since the extension method would look for, and not find, an implementation of ICollection<Cat>). If the ...
Installing Python 3 on RHEL
...here may be newer releases on Python.org):
$ wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tar.xz
Unzip
$ tar xf Python-3.*
$ cd Python-3.*
Prepare compilation
$ ./configure
Build
$ make
Install
$ make install
OR if you don't want to overwrite the python executable (safer, a...
Storing Images in DB - Yea or Nay?
... need access to the folder. You could have a process to serve the file via FTP based upon request, and the security would be on par with SQL server.
– Andrew Neely
Aug 4 '11 at 13:56
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Vim delete blank lines
...e the unique requirement. Someone may still keep one of the empty line. :%!cat -s may be the choice..
– coanor
Nov 21 '12 at 5:04
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How to count lines in a document?
...c -l < /dir/file.txt
3272485
You can also pipe data to wc as well:
$ cat /dir/file.txt | wc -l
3272485
$ curl yahoo.com --silent | wc -l
63
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