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@getify
getify / gist:3667624
Last active June 25, 2022 16:26
escape all (not-already-escaped) double-quote chars in a string
// NOTE: only escapes a " if it's not already escaped
function escapeDoubleQuotes(str) {
return str.replace(/\\([\s\S])|(")/g,"\\$1$2"); // thanks @slevithan!
}
escapeDoubleQuotes(`ab`); // ab => ab (nothing escaped)
escapeDoubleQuotes(`a"b`); // a"b => a\"b
escapeDoubleQuotes(`a\\"b`); // a\"b => a\"b (nothing escaped)
escapeDoubleQuotes(`a\\\\"b`); // a\\"b => a\\\"b
escapeDoubleQuotes(`a\\\\\\"b`); // a\\\"b => a\\\"b (nothing escaped)
@earthgecko
earthgecko / bash.generate.random.alphanumeric.string.sh
Last active April 24, 2025 05:26
shell/bash generate random alphanumeric string
#!/bin/bash
# bash generate random alphanumeric string
#
# bash generate random 32 character alphanumeric string (upper and lowercase) and
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1
@jehiah
jehiah / simple_args_parsing.sh
Created March 4, 2011 16:56
a simple way to parse shell script arguments
#!/bin/sh
#
# a simple way to parse shell script arguments
#
# please edit and use to your hearts content
#
ENVIRONMENT="dev"