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Extract filename and extension in Bash
... section "3.5.3 Shell Parameter Expansion"
In the bash manpage at section called "Parameter Expansion"
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Using the star sign in grep
...will match a string that contains abc followed by def with something optionally in between.
Update based on a comment:
* in a regular expression is not exactly the same as * in the console. In the console, * is part of a glob construct, and just acts as a wildcard (for instance ls *.log will list ...
Seedable JavaScript random number generator
... Math.random() function returns a random value between 0 and 1, automatically seeded based on the current time (similar to Java I believe). However, I don't think there's any way to set you own seed for it.
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Useless use of cat?
...my rationale.
I had not meant to be defensive in responding to him. After all, in my younger years, I would have written the command as grep foo file.txt | cut ... | cut ... because whenever you do the frequent single greps you learn the placement of the file argument and it is ready knowledge that...
Git push error '[remote rejected] master -> master (branch is currently checked out)'
... remote repository folder:
git config --bool core.bare true
Then delete all the files except .git in that folder. And then you will be able to perform git push to the remote repository without any errors.
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Could not execute editor
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Had the same issue but with Sublime Text - full path finally solved things. Which was weird because i'm sure its all worked fine before anyway... :-\
– Hal
May 30 '14 at 2:43
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How do I remove blank elements from an array?
...hmandu", "Pokhara", "", "Dharan", "Butwal"] - ["", nil]
This will remove all blank or nil elements.
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How can I easily fixup a past commit?
...xup ' workflow I asked for:
#!/usr/bin/env python
from subprocess import call
import sys
# Taken from http://stackoverflow.com/questions/377017/test-if-executable-exists-in python
def which(program):
import os
def is_exe(fpath):
return os.path.exists(fpath) and os.access(fpath, os....
Any idea why I need to cast an integer literal to (int) here?
...In general, you should not cast to Integer class. This involves something called auto-boxing, and can cause some subtle errors in your code.
The prefered method of doing what you want is:
Integer i6 = Integer.valueOf(-128)
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Why does Javascript getYear() return 108?
...r the ECMAScript specification, getYear returns the year minus 1900, originally meant to return "98" for 1998. getYear was deprecated in ECMAScript Version 3 and replaced with getFullYear().
Internet Explorer changed getYear() to work like getFullYear() and make it Y2k-compliant, while Mozilla kept ...