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Returning value from called function in a shell script
...also true for some other shells.
Here's how to do each of those options:
1. Echo strings
lockdir="somedir"
testlock(){
retval=""
if mkdir "$lockdir"
then # Directory did not exist, but it was created successfully
echo >&2 "successfully acquired lock: $lockdir"
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How to sort List of objects by some property
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12 Answers
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Algorithm to generate all possible permutations of a list?
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Is it possible to use 'else' in a list comprehension? [duplicate]
...used in comprehension statements:
>>> [a if a else 2 for a in [0,1,0,3]]
[2, 1, 2, 3]
So for your example,
table = ''.join(chr(index) if index in ords_to_keep else replace_with
for index in xrange(15))
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List files by last edited date
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172
You can use:
ls -Rt
where -R means recursive (include subdirectories) and -t means "sort by...
How do I prompt for Yes/No/Cancel input in a Linux shell script?
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ld cannot find an existing library
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158
The problem is the linker is looking for libmagic.so but you only have libmagic.so.1
A quick ...
Sort array of objects by string property value
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Equation (expression) parser with precedence?
...ce you need to think recursively, for example, using your sample string,
1+11*5
to do this manually, you would have to read the 1, then see the plus and start a whole new recursive parse "session" starting with 11... and make sure to parse the 11 * 5 into its own factor, yielding a parse tree wi...