khaliqgant

# mac
sed -i '' 's/hello/bonjour' greetings.txt
sed -i '' 's|{{ DB_SHARED_BUFFERS }}|'"$DB_SHARED_BUFFERS"'|g' ./postgres/postgresql.conf

# linux
sed -i 's/hello/bonjour' greetings.txt
sed -i 's|{{ DB_SHARED_BUFFERS }}|'"$DB_SHARED_BUFFERS"'|g' postgres/postgresql.conf

find . -type f -name "*.ts" -print0 | xargs -0 sed -i '' -e 's/[..\/]*shared/@shared/g' && find . -type f -name "*.ts" -print0 | xargs -0 sed -i '' -e "s/@shared'/@shared\/index'/g"

khaliqgant

BUCKET_NAME="foo"
DIRECTORY="bar"

aws s3api list-objects-v2 --output text --bucket $BUCKET_NAME --prefix $DIRECTORY --query 'Contents[].[Key]' | pv -l > FILES.keys

tail -n+0 FILES.keys | pv -l | grep -v -e "'" | tr '\n' '\0' | xargs -0 -P4 -n1000 bash -c 'aws s3api delete-objects --bucket $BUCKET_NAME --delete "Objects=[$(printf "{Key=%q}," "$@")],Quiet=true"' _

# https://serverfault.com/questions/679989/most-efficient-way-to-batch-delete-s3-files

khaliqgant

# From pod to host
kubectl cp jigasi-767f64f5bf-zjvfv:/config/log/jitsi0.pcap jigasi.pcap
# From host to pod
kubectl cp dev.dump database-777b9f9c4-p6g4s:/

khaliqgant

docker ps --no-trunc


# https://stackoverflow.com/questions/27380641/see-full-command-of-running-stopped-container-in-docker

khaliqgant

CPU_LIMIT=$(echo "$customer_line" | jq -r '.cpu_limits.foo // 0')

MEMORY_LIMIT=$(echo "$customer_line" | jq -r 'if has("memory_limits") then .memory_limits.foo else 0 end')

# https://stackoverflow.com/questions/56555155/get-or-default-function-in-jq/56555442#56555442

khaliqgant

environment=${1:-develop}
FOO="${VARIABLE:=default}"

https://stackoverflow.com/questions/2013547/assigning-default-values-to-shell-variables-with-a-single-command-in-bash
https://stackoverflow.com/questions/9332802/how-to-write-a-bash-script-that-takes-optional-input-arguments

khaliqgant

// syncing from my server to my dropbox some data files

rsync -r khaliqgant:/home/kjg/finances/data "/Users/kgant/Dropbox (Personal)/KJG/Personal/Finances/App Data Backup/"

khaliqgant

rsync -v -r --update . [email protected]:/storage/av03089/www/public_html

// test with dry run
rsync -v -r --update . [email protected]:/storage/av03089/www/public_html --dry-run

// had to run sudo -- run from the directory you want to transfer over
sudo rsync -v -r --update . [email protected]:/storage/av03089/www/public_html

khaliqgant

// bash variabes
repo=~/Sites/columbia-repo/
dropbox=~/Dropbox\ \(Personal\)/KJG/Personal/Education/Classes/Advanced\ Programming/homework
pass=$repo/auth/.pass
clic=clic:/home/kjg2150/cs3157
hw=~/Sites/columbia-repo/c/3157/hw

-avz = 
a = archive
v = verbose

khaliqgant

rsync my_mock.sql -avz hzn:/home/khaliq/repos/backend/docker/data/db -v