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inserting characters at the start and end of a string
I am new and trying to find a way to insert a number of L's at the beginning and end of a string. So if I have a string which says
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Is it a bad practice to use an if-statement without curly braces? [closed]
... however may be pist if you introduce a bug because of a silly curly brace error.
– Esteban Araya
Jan 24 '10 at 0:16
12
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How to use random in BATCH script?
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I'm getting "Missing operand" error when trying this on Windows 10. Looks like you need just a singe % for modulo.
– Calmarius
Nov 25 '19 at 10:14
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Retrieve list of tasks in a queue in Celery
... Celery.
– mlissner
May 11 '17 at 5:05
1
I've updated the above to handle prioritized tasks. Prog...
How to kill all processes with a given partial name? [closed]
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This will throw an error if no process matching the name is found. You may want to use ps -ef | grep myProcessName | grep -v grep | awk '{print $2}' | xargs -r kill -9 to have xargs not execute the command if no arguments are given.
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How do you Force Garbage Collection from the Shell?
...to user3198490's answer. Running this command might give you the following error message:
$ jcmd 1805 GC.run
[16:08:01]
1805:
com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file: target process not responding or HotSpot VM not loaded
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This can be solved with help o...
How do I get ruby to print a full backtrace instead of a truncated one?
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This produces the error description and nice clean, indented stacktrace:
begin
# Some exception throwing code
rescue => e
puts "Error during processing: #{$!}"
puts "Backtrace:\n\t#{e.backtrace.join("\n\t")}"
end
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Maximum length for MySQL type text
I'm creating a form for sending private messages and want to set the maxlength value of a textarea appropriate to the max length of a text field in my MySQL database table. How many characters can a type text field store?
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Remove trailing newline from the elements of a string list
..., and mainly about list comprehension, are great. But just to explain your error:
strip_list = []
for lengths in range(1,20):
strip_list.append(0) #longest word in the text file is 20 characters long
for a in lines:
strip_list.append(lines[a].strip())
a is a member of your list, not an i...
How to compare UIColors?
I'd like to check the color set for a background on a UIImageView. I've tried:
20 Answers
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