Tips &Tricks

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$? variable in linux

$? Status of the previous process / command which ran on the shell $ pwd $ echo $? // returns 0 which means the previous command ran sucessfully $ blahCommand $echo $? // returns...

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path.join vs path.resolve in node.js

path.join([…paths]) joins all the path segments using platform specific delimiter. path.join(‘/foo’, ‘bar’, ‘baz/zxcv’, ‘abcd’, ‘..’) // ‘/foo/bar/baz/zxcv/abcd/…’ path.resolve([…paths]) Resolves all the path segments into an absolute path. It processes from right to left, until...

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Delete unused docker images

You usually have to clear unused docker images otherwise it will eat up all your disk space. I realized this when i got an error ERROR: Failed to create usr/lib/node_modules/npm/node_modules/node-gyp/node_modules/glob/node_modules/minimatch/node_modules/brace-expansion/.npmignore: No space left on...