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sed edit file in place
... the better solution would be to use perl:
perl -pi -e 's/foo/bar/g' file.txt
Although this does create a temporary file, it replaces the original because an empty in place suffix/extension has been supplied.
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How do I start a process from C#?
...l be started by the registered application.
Example:
Process.Start("Test.Txt");
This will start Notepad.exe with Text.Txt loaded.
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...
Extract hostname name from string
...b_iE"));
console.log(extractHostname("ftps://ftp.websitename.com/dir/file.txt"));
console.log(extractHostname("websitename.com:1234/dir/file.txt"));
console.log(extractHostname("ftps://websitename.com:1234/dir/file.txt"));
console.log(extractHostname("example.com?param=value"));
console.log(ext...
Automatically creating directories with file output [duplicate]
...this. Try the following:
import os
import errno
filename = "/foo/bar/baz.txt"
if not os.path.exists(os.path.dirname(filename)):
try:
os.makedirs(os.path.dirname(filename))
except OSError as exc: # Guard against race condition
if exc.errno != errno.EEXIST:
raise
...
Curses library not found. Please install appropriate package - 更多...
...library not found. Please install appropriate package,
remove CMakeCache.txt and rerun cmake.On Debian/Ubuntu, package name is libncurses5-dev, on Redhat and derivates it is ncurses-devel.
Call Stack (most recent call first):
cmake/readline.cmake:128 (FIND_CURSES)
cmake/readline.cmake:202 (...
Unix shell script to truncate a large file
...ally need a command to go along with the redirection:
$ echo foo > foo.txt
$ cat foo.txt
foo
$ > foo.txt
$ cat foo.txt
$
A simple redirection all by itself will clear the file.
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impr...
How can I use grep to find a word inside a folder?
...d find MobileAppServlet.java or MobileAppServlet.class or MobileAppServlet.txt; 'MobileAppASer*.*' is another way to do the same thing.)
To check more parameters use man grep command.
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impro...
Python: How to get stdout after running os.system? [duplicate]
...
import os
batcmd = 'dir'
result_code = os.system(batcmd + ' > output.txt')
if os.path.exists('output.txt'):
fp = open('output.txt', "r")
output = fp.read()
fp.close()
os.remove('output.txt')
print(output)
...
rsync: how can I configure it to create target directory on server?
...hat contains them then you would do:
rsync -rvv /path/to/data/myappdata/*.txt user@host:/remote/path/to/data/myappdata/
and it will create the myappdata directory for you on the remote machine to place your files in. Again, the data/ directory must exist on the remote machine.
Incidentally, my u...
PreparedStatement IN clause alternatives?
...iew looks like:
create or replace view in_list
as
select
trim( substr (txt,
instr (txt, ',', 1, level ) + 1,
instr (txt, ',', 1, level+1)
- instr (txt, ',', 1, level) -1 ) ) as token
from (select ','||aux_in_list.getpayload||',' txt from dual)
connect by lev...