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How do you run a command for each line of a file?
... not too big and all files are well named (without spaces or other special chars like quotes), you could use shell command line expansion. Simply:
chmod 755 $(<file.txt)
For small amount of files (lines), this command is the lighter one.
xargs is the right tool
For bigger amount of files, or ...
How to construct a relative path in Java from two absolute paths (or URLs)?
... It has a relativize method which does all the necessary checks for you.
String path = "/var/data/stuff/xyz.dat";
String base = "/var/data";
String relative = new File(base).toURI().relativize(new File(path).toURI()).getPath();
// relative == "stuff/xyz.dat"
Please note that for file path there'...
Clustered vs Non-Clustered
...n-clustered index, which would direct you to the row's location, adding an extra step).
That said, it's unusual for the primary key not to be the clustered index, but not unheard of. The issue with your scenario is actually the opposite of what you're assuming: you want unique values in a clustered...
how to exclude null values in array_agg like in string_agg using postgres?
...s g
GROUP BY g.id
) s
Or, simpler and may be cheaper, using array_to_string which eliminates nulls:
SELECT
g.id,
array_to_string(
array_agg(CASE WHEN g.canonical = 'Y' THEN g.users ELSE NULL END)
, ','
) canonical_users,
array_to_string(
array_agg(CASE ...
How can I generate an INSERT script for an existing SQL Server table that includes all stored rows?
... is condition.
Exec [dbo].[INS] 'Dbo.test where name =''neeraj''' * for string
(2) Here dbo is schema and test is tablename and name='neeraj' is condition.
Here is the stored procedure
/*
Authore : neeraj prasad sharma (please dont remove this :))
Example (1) Exec [dbo].[INS] 'Dbo.test where...
Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...racter (Zulu or zero offset) at the end of UTC datetime object's isoformat string unlike JavaScript?
12 Answers
...
Why charset names are not constants?
...
The simple answer to the question asked is that the available charset strings vary from platform to platform.
However, there are six that are required to be present, so constants could have been made for those long ago. I don't know why they weren't.
JDK 1.4 did a great thing by introducing t...
How to get error message when ifstream open fails
How to get error message as string?
4 Answers
4
...
Substitute multiple whitespace with single whitespace in Python [duplicate]
I have this string:
3 Answers
3
...
How can I pass a Bitmap object from one activity to another
...mple code.
To store bitmap in a file myImage in internal storage:
public String createImageFromBitmap(Bitmap bitmap) {
String fileName = "myImage";//no .png or .jpg needed
try {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat...