Richard Barrell RichardBarrell
RichardBarrell
/ size_t_minus_one.c
Last active
February 4, 2017 04:14
Demonstrating that converting an int containing -1 to size_t does the right thing even where sizeof(int) != sizeof(size_t)
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| #include <stdint.h> | |
| #include <stdio.h> | |
| #include <limits.h> | |
| typedef struct rtunion { | |
| char whatever[8]; | |
| } rtunion; | |
| int main (int argc, char **argv) { | |
| (void)argc; |
RichardBarrell
/ delete-directories-containing-only-index-html.sh
Created
August 17, 2017 20:26
for https://twitter.com/bitfield/status/897823122723921921
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| # find directories which contain only one entry called "index.html" and delete them | |
| # this doesn't enforce that the found "index.html" is a file rather than a directory, symlink, socket, device node, etc | |
| find . -depth -print0 | \ | |
| awk 'BEGIN{RS="\0";ORS="\0";} match($0, /^(.*)[/]([^/]+)$/, A) {prevDir=dir; dir=A[1]; if ((prevDir == $0) && couldDelete) { print($0); } if (prevDir != dir) { couldDelete = 1; } if (A[2] != "index.html") { couldDelete = 0; } }' | \ | |
| xargs -0 rm -r |
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