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19681a0702
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Copyright (c) 2016, stephen mcquay |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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|
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* Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, |
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this list of conditions and the following disclaimer in the documentation |
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and/or other materials provided with the distribution. |
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* Neither the name of authpixious nor the names of its contributors |
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may be used to endorse or promote products derived from this software |
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without specific prior written permission. |
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|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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# slg is structured log grep |
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Example: |
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```bash |
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$ echo "key=val key2=val key3=val" | slg key2 |
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key2=val |
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``` |
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package main |
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import ( |
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"bufio" |
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"fmt" |
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"os" |
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"strings" |
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) |
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func main() { |
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keys := map[string]bool{} |
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for _, k := range os.Args[1:] { |
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keys[k] = true |
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} |
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s := bufio.NewScanner(os.Stdin) |
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for s.Scan() { |
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ss := []string{} |
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for _, f := range strings.Fields(s.Text()) { |
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kv := strings.Split(f, "=") |
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if len(kv) != 2 { |
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continue |
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} |
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k := kv[0] |
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if _, ok := keys[k]; !ok { |
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continue |
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} |
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ss = append(ss, f) |
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} |
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if len(ss) > 0 { |
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fmt.Println(strings.Join(ss, " ")) |
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} |
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} |
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} |
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