Handmade cmd for day-to-day plumbing.
Installation
~ $ go get -u github.com/rjeczalik/cmd/...
Listens on filesystem changes and forwards received mapping to user-defined handlers.
Documentation
godoc.org/github.com/rjeczalik/cmd/notify
Usage
~ $ notify -c 'echo "Hello from handler! (event={{.Event}}, path={{.Path}})"'
2015/02/17 01:17:40 received notify.Create: "/Users/rjeczalik/notify.tmp"
Hello from handler! (event=create, path=/Users/rjeczalik/notify.tmp)
...
~ $ cat > handler <<EOF
> echo "Hello from handler! (event={{.Event}}, path={{.Path}})"
> EOF
~ $ notify -f handler
2015/02/17 01:22:26 received notify.Create: "/Users/rjeczalik/notify.tmp"
Hello from handler! (event=create, path=/Users/rjeczalik/notify.tmp)
...
Prints derivative computed out of line-separated numbers.
Documentation
godoc.org/github.com/rjeczalik/cmd/dln
Usage
~ $ curl -sS http://cdimage.ubuntu.com/daily-live/current/vivid-desktop-amd64.iso -o vivid-amd64.iso &
[1] 21496
~ $ while sleep 1; do du -BK vivid-amd64.iso ; done | dln
1008
1172
1548
2332
3200
4756
6572
7056
7052
7048
7060
7036
7048
7056
^C
Prints histogram for line-separated data points. It sorts the result set by the number of occurances in descending order.
Documentation
godoc.org/github.com/rjeczalik/cmd/hist
Usage
~ $ log=https://gist.githubusercontent.com/rjeczalik/f18349ad629f07d19839/raw/b8089282fdd5a8ea8589fe33bc88cc6d29db7026/lazyvm.log
~ $ curl -sS $log | dln | hist
0 962 ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░
1 5
18 3
3 2
9 1
6 1
49 1
23 1
22 1
21 1
59 1
11 1
78 1
4 1
42 1
2 1
~ $ curl -sS $log | dln | hist -slice 1:
1 5 ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░
18 3 ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░
3 2 ░░░░░░░░░░░░░░░░░░░░░░░░░
9 1 ░░░░░░░░░░░░
6 1 ░░░░░░░░░░░░
49 1 ░░░░░░░░░░░░
23 1 ░░░░░░░░░░░░
22 1 ░░░░░░░░░░░░
21 1 ░░░░░░░░░░░░
59 1 ░░░░░░░░░░░░
11 1 ░░░░░░░░░░░░
78 1 ░░░░░░░░░░░░
4 1 ░░░░░░░░░░░░
42 1 ░░░░░░░░░░░░
2 1 ░░░░░░░░░░░░
Command prepend inserts data read from stdin or an input file at the begining of the given file.
If data to prepend is passed both via stdin and input file, first the given file is prepended with data read from stdin, then from input file.
The prepend command does not load the files contents to the memory, making it suitable for large files. Writes issued by the prepend command are atomic, meaning if reading from stdin or input file fails the original file is left untouched.
Documentation
godoc.org/github.com/rjeczalik/cmd/prepend
Usage
~ $ cat > preamble.txt <<EOF
> // Copyright (c) 2015 Your Team. All right reserved.
> // Use of this source code is governed by the X license
> // that can be found in the LICENSE file
>
> EOF
~ $ preprend -u -f preamble.txt *.go
Command draft-init is a conveniance wrapper for draft init and docker login commands, which is used to configure both - draft and docker - using GCP's service account json key file.
Documentation
godoc.org/github.com/rjeczalik/cmd/draft-init
Installation
$ go get -u github.com/rjeczalik/cmd/draft-init
Usage
Usage of draft-init:
-docker
Initialize docker only.
-domain string
Base domain for applications.
-dry
Print commands only.
-f string
Service account JSON key file.
-gcr string
Container registry host. (default "gcr.io")