# should exist
Sys.which("bash")
## bash
## "/bin/bash"
Sys.which("sh")
## sh
## "/bin/sh"
Does bash
work?
echo hello world
echo 'a b c' | sed 's/ /\|/g'
# number of lines
awk 'END{print NR;}' 027-engine-bash.Rmd
## hello world
## a|b|c
## 23
How about sh
?
# run wc on all engine examples
ls | grep engine | head -n8 | xargs wc
## 111 222 1585 023-engine-python.md
## 73 179 1416 023-engine-python.Rmd
## 16 38 161 024-engine-awk.md
## 11 41 252 024-engine-awk.Rmd
## 12 21 127 025-engine-ruby.md
## 7 17 109 025-engine-ruby.Rmd
## 13 37 234 026-engine-haskell.md
## 8 37 267 026-engine-haskell.Rmd
## 251 592 4151 total