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How do I check whether a file exists without exceptions?
...re is some simple REPL output:
>>> os.path.isfile("/etc/password.txt")
True
>>> os.path.isfile("/etc")
False
>>> os.path.isfile("/does/not/exist")
False
>>> os.path.exists("/etc/password.txt")
True
>>> os.path.exists("/etc")
True
>>> os.path.exi...
How do I create a file AND any folders, if the folders don't exist?
... wish to create (or overwrite) the following file :- C:\Temp\Bar\Foo\Test.txt
9 Answers
...
Is it possible to set async:false to $.getJSON call
...ion() {
var result;
$.ajax({
type:'GET',
url:'data.txt',
dataType:'json',
async:false,
success:function(data){
result = data;
}
});
return result;
})();
alert(JSON.stringify(jsonData));
It works find. Then I change to
var...
Save modifications in place with awk
...treat each file independently, you'll need to do something like for f in *.txt; do gawk -i inplace '!seen[$0]++' "$f"; done
– Nick K9
Jan 17 '19 at 18:10
add a comment
...
Set the value of an input field
...ly simple
// Your HTML text field
<input type="text" name="name" id="txt">
//Your javascript
<script type="text/javascript">
document.getElementById("txt").value = "My default value";
</script>
Or if you want to avoid JavaScript entirely: You can define it just using HTML
...
vim command to restructure/force text to 80 columns
...both for your example.
$ echo -e 'long line is long!\nshort' > 3033423.txt
$ cat 3033423.txt
long line is long!
short
$ fmt -w 13 3033423.txt
long line is
long! short
$ par 13gr 3033423.txt
long line is
long! short
To use from inside Vim:
:%! fmt -w 13
:%! par 13gr
You can also set :format...
Convert from ASCII string encoded in Hex to plain ASCII?
...
>>> txt = '7061756c'
>>> ''.join([chr(int(''.join(c), 16)) for c in zip(txt[0::2],txt[1::2])])
'paul'
i'm just having fun, but the important par...
Find index of last occurrence of a substring in a string
...in your code...
Example: Search of last newline character
>>> txt = '''first line
... second line
... third line'''
>>> txt.rfind('\n')
22
>>> txt.rindex('\n')
22
share
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...
Iterate all files in a directory using a 'for' loop
...thought my use case might help. Here is a loop that reads info from each '.txt' file in a directory and allows you do do something with it (setx for instance).
@ECHO OFF
setlocal enabledelayedexpansion
for %%f in (directory\path\*.txt) do (
set /p val=<%%f
echo "fullname: %%f"
echo "name: ...
Python how to write to a binary file?
...t.pack('5B', *newFileBytes))
However I would never give a binary file a .txt extension.
The benefit of this method is that it works for other types as well, for example if any of the values were greater than 255 you could use '5i' for the format instead to get full 32-bit integers.
...