Questions tagged [bash]
This challenge is related to the Bash (Bourne Again SHell) language. Note that challenges that require the answers to be in a specific language are generally discouraged.
9 questions
2
votes
1
answer
345
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Code Golfing in Bash
I'm pretty new to code golfing, but I recently came across a guy on Kattis that consistently has exactly 5 character Bash solutions for some problems. For example, here is a leaderboard showing his 5 ...
- 29
1
vote
2
answers
351
views
The many ways to skin a `cat` [duplicate]
The well known cat command simply copies its stdin directly to stdout unchanged. But there are plenty of other commandline tools that exist...
What other commands ...
- 143
1
vote
1
answer
279
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Most elegant one-liner to generate sqlite INSERTs
Challenge
You find yourself in a bash terminal, and want to do some simple tests
on sqlite3.
So you issue the following command:
...
- 119
9
votes
5
answers
638
views
Shortest way to convert the result of a test to a string output (e.g. true or false) in bash
I'm trying to shorten a bash solution to a Code Golf challenge, which requires an output of true or false. I've managed to ...
- 943
-4
votes
4
answers
320
views
tail: troll: file truncated
Background
When you run tail -f file in bash, the file is outputted and then any subsequent appends.
However, when you remove something that has already been ...
user58826
8
votes
1
answer
638
views
Code Golfing Split String in Bash [closed]
Let us play a little golfing game.
Given a single line of N space separated numbers from STDIN, one must output those numbers on N lines.
So far, I came up with the three following bash solutions :
...
- 89
6
votes
4
answers
558
views
Shorter way to assign a default value to the standard output stream
I have this code :
tr ' ' '\n'|sort -n|head -1
The code is pretty simple, it takes a list of integer in the standard input stream (like ...
- 163
12
votes
1
answer
623
views
Write a panic script to remote secure a Mac Pro from an untrustworthy local user [closed]
The Situation
Suppose I allow "Shady Sam" admin access on my workstation to perform an important administrative task on my Mac Pro for me by giving them a temporary root login password. (Assume they ...
- 299
70
votes
43
answers
13k
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Tips for golfing in Bash
What general tips do you have for golfing in Bash? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Bash (e.g. "remove comments" is not ...
- 20.9k