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the-art-of-command-line
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taocl "fortune" function: use python oneliner instead of dependency on non-standard tools (pandoc and xmlstarlet)

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Stefaan Lippens 2015-06-20 23:40:12 +02:00
parent 80ba0c126d
commit b2faec3952
1 changed files with 2 additions and 5 deletions
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@ -289,14 +289,11 @@ A few examples of piecing together commands:
cat access.log | egrep -o 'acct_id=[0-9]+' | cut -d= -f2 | sort | uniq -c | sort -rn cat access.log | egrep -o 'acct_id=[0-9]+' | cut -d= -f2 | sort | uniq -c | sort -rn
``` ```
- Run this function to get a random tip from this document (parses Markdown and extracts an item): - Run this function to get a random tip from this document:
```sh ```sh
function taocl() { function taocl() {
curl -s https://raw.githubusercontent.com/jlevy/the-art-of-command-line/master/README.md | curl -s https://raw.githubusercontent.com/jlevy/the-art-of-command-line/master/README.md |
pandoc -f markdown -t html | python -c 'import sys,re,random;print random.choice([m.group(1) for m in re.finditer(r"^- (.*?)\n\n",sys.stdin.read(),re.DOTALL|re.MULTILINE)])' | fmt -80
xmlstarlet fo --html --dropdtd |
xmlstarlet sel -t -v "(html/body/ul/li[count(p)>0])[$RANDOM mod last()+1]" |
xmlstarlet unesc | fmt -80
} }
``` ```