大约有 2,600 项符合查询结果（耗时：0.0217秒） [XML]
Automatically capture output of last command into a variable using Bash?
...age. Yes, you can assign the output to variable
MY_VAR="$(find -name foo.txt)"
echo "$MY_VAR"
But better hope your hardest that find only returned one result and that that result didn't have any "odd" characters in it, like carriage returns or line feeds, as they will be silently modified when a...
Sorting a tab delimited file
...
Using bash, this will do the trick:
$ sort -t$'\t' -k3 -nr file.txt
Notice the dollar sign in front of the single-quoted string. You can read about
it in the ANSI-C Quoting sections of the bash man page.
share
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How to ignore xargs commands if stdin input is empty?
...or both GNU and BSD/OSX support I end up using something like: ls /mydir/*.txt | xargs -n 1 -I {} chown root {}, as this answer suggests.
– Luís Bianchin
Jul 17 '18 at 11:12
3
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Python script to copy text to clipboard [duplicate]
...
To use native Python directories, use:
import subprocess
def copy2clip(txt):
cmd='echo '+txt.strip()+'|clip'
return subprocess.check_call(cmd, shell=True)
on Mac, instead:
import subprocess
def copy2clip(txt):
cmd='echo '+txt.strip()+'|pbcopy'
return subprocess.check_call(cmd...
How do I use Java to read from a file that is actively being written to?
...eredInputStream reader = new BufferedInputStream(new FileInputStream( "out.txt" ) );
public void run() {
while( running ) {
if( reader.available() > 0 ) {
System.out.print( (char)reader.read() );
}
else {
try {
sleep( 500 );
...
How to include package data with setuptools/distribute?
...ettings.xml
- words
- __init__.py
word_set.txt
setup.py:
from setuptools import setup, find_packages
import os.path
setup (
name='myproject',
version = "4.19",
packages = find_packages(),
# package_dir={'mypkg': 'src/mypkg'}, # didnt use this.
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How to download a file from server using SSH? [closed]
...
In your terminal, type:
scp your_username@remotehost.edu:foobar.txt /local/dir
replacing the username, host, remote filename, and local directory as appropriate.
If you want to access EC2 (or other service that requires authenticating with a private key), use the -i option:
scp -i key...
How to duplicate virtualenv
..., go into your original virtualenv, and run:
pip freeze > requirements.txt
This will generate the requirements.txt file for you. If you open that file up in your favorite text editor, you'll see something like:
Django==1.3
Fabric==1.0.1
etc...
Now, edit the line that says Django==x.x to say...
Using Server.MapPath in external C# Classes in ASP.NET
...ar path = System.Web.Hosting.HostingEnvironment.MapPath("~/App_Data/myfile.txt")
if
var path = Server.MapPath("~/App_Data");
var fullpath = Path.Combine(path , "myfile.txt");
is inaccessible
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How do I check if a file exists in Java?
...ll return true if your path points to a directory.
new File("path/to/file.txt").isFile();
new File("C:/").exists() will return true but will not allow you to open and read from it as a file.
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