Basavanagowda Kanur gowda
gowda
/ do-split.sh
Created
August 6, 2019 16:33
Split a large CSV file into smaller chunks & preserve header in each of the chunks, then upload each of the chunks to S3 bucket
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| #!/bin/bash | |
| function __setup() { | |
| input="$1"; | |
| # https://stackoverflow.com/a/32584935/1993020 | |
| OUTPUT_PREFIX=$(echo $input | rev | cut -f 2- -d'.' | rev); | |
| header=$(head -1 $input); |
gowda
/ javascript-format-date-locale-issue.js
Last active
February 13, 2019 18:53
Locale issue in stock nodejs distribution
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| // on node console: (on Feb 14th 2019) | |
| > let date = new Date(); | |
| > date.toLocaleDateString("en-IN", {day: "2-digit", month: "2-digit", year: "numeric"}); | |
| '02/14/2019' | |
| // Expected result: '14/02/2019' | |
| // Github issue (https://github.com/nodejs/node/issues/8500) details the behaviour & provides solutions | |
| // Easiest solution: https://github.com/nodejs/node/issues/8500#issuecomment-246437933 | |
| // |
gowda
/ typescript-inheritance-issue.ts
Created
February 13, 2019 18:28
Typescript inheritance with complex constructor
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| /* | |
| Retain original behaviour of new Date(), new Date("YYYY-MM-DD"), new Date(date /* Date */), | |
| while allowing instantiation using new AppointmentDate("DD.MM.YYYY") | |
| */ | |
| class AppointmentDay extends Date { | |
| constructor(date?: string | Date) { | |
| if (!date) { | |
| super(); | |
| } else if (date instanceof Date) { | |
| super(date); |
gowda
/ bash-startup-time-with-lazy-loading-environment-managers.sh
Created
October 3, 2018 11:57
Bash interactive login shell startup time with lazy loading for rvm, nvm, pyenv & jenv
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| $ time echo 'exit' | bash -li | |
| $ exit | |
| logout | |
| real 0m0.370s | |
| user 0m0.180s | |
| sys 0m0.268s |
gowda
/ bash-startup-time-with-environment-managers.sh
Created
October 3, 2018 11:55
Bash interactive login shell startup time when configuring rvm, nvm, pyenv & jenv
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| $ time echo 'exit' | bash -li | |
| $ exit | |
| logout | |
| real 0m3.076s | |
| user 0m1.287s | |
| sys 0m1.107s |
gowda
/ bash-lazy-rvm-loader-for-ruby-tools.sh
Created
October 3, 2018 11:50
Bash lazy loader function to configure rvm when any ruby bundle program is invoked
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| MACOS_RUBY_DIR="/System/Library/Frameworks/Ruby.framework/Versions/Current" | |
| binaries=$(ls ${MACOS_RUBY_DIR}/usr/bin) | |
| for binary in $binaries; do | |
| source /dev/stdin <<EOF | |
| function ${binary}() { | |
| for t in ${binaries}; do | |
| unset -f "\$t"; | |
| done | |
| local SCRIPT="\$HOME/.rvm/scripts/rvm" |
gowda
/ bash-lazy-rvm-loader-for-ruby.sh
Created
October 3, 2018 11:48
Bash lazy loader function to configure rvm when ruby is invoked
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| function ruby() { | |
| unset -f "ruby"; | |
| local SCRIPT="$HOME/.rvm/scripts/rvm" | |
| [[ -s ${SCRIPT} ]] && source ${SCRIPT}; | |
| ruby "$@"; | |
| } |
gowda
/ bash-lazy-loaded-rvm-invocation.sh
Created
October 3, 2018 11:45
Invoking rvm after configuring lazy loading for rvm
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| $ time rvm - version # first invocation of rvm | |
| rvm 1.29.4 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io] | |
| real 0m0.677s | |
| user 0m0.333s | |
| sys 0m0.280s | |
| $ time rvm - version # not first invocation of rvm | |
| rvm 1.29.4 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io] |
gowda
/ bash-lazy-rvm-loader-for-rvm.sh
Created
October 3, 2018 11:43
Bash lazy loader function to configure rvm when rvm itself is invoked
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| function rvm() { | |
| unset -f "rvm"; | |
| local SCRIPT="$HOME/.rvm/scripts/rvm" | |
| [[ -s ${SCRIPT} ]] && source ${SCRIPT}; | |
| rvm "$@"; | |
| } |
gowda
/ bash-startup-time-without-rvm.sh
Created
October 3, 2018 11:40
Bash interactive login shell startup time when not configuring rvm
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| $ time echo 'exit' | bash -li | |
| $ exit | |
| logout | |
| real 0m0.039s | |
| user 0m0.009s | |
| sys 0m0.020s |