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Bash history from the command line talk at RubyMKE 4/16
ls
clear
\ls
type ls
alias ls='ls -1'
ls
type ls
which ls
type cd
type git
type sh
man man
man ls
type git
ls asjkdhf
touch tmp
cp tmp tmp2
touch temp
ls
alias ls='ls -aF'
ls
ln -s tmp temp
ln -s tmp temp2
ls
rm temp2
ls
rm temp
ls
echo "file1" > file1.tmp
echo "file1"
echo `ls`
echo $(ls)
cat <(ls)
cp -r vendor/ vendor-new
diff vendor vendor-new/
cd vendor-new/
echo "file1" > file1
cd ..
echo "file1" > file1
diff vendor vendor-new/
cat <(ls)
cat Gemfile | wc -l
type wc
man wc
cat Gemfile | wc -w
wc -w Gemfile
wc -w Gemfile Gemfile.lock
wc -w *
wc -w * > stdout.txt
cat stdout.txt
wc -w * > stdout.txt 2> stderr.txt
apropos link
wc -w * > stdout.txt 2> stderr.txt
cat stdout.txt
cat stderr.txt
ls
wc -w * 2>> stderr.txt
cat stderr.txt
man tee
cat Gemfile | tee Gemfile.new | wc -w
more Gemfile.new
man tee
wc -l * |tee errors.txt
more errors.txt
wc -l * |tee errors.txt | wc -l
wc errors.txt
wc -l * |tee errors.txt 2>&1 | wc -l
wc -l * 2>&1 |tee errors.txt | wc -l
more errors.txt
find .
wc -l * 3>&1 1>&2 2>&3 |tee output.txt
more output.txt
ls -l
find .
ls
find app lib
ls
find app lib -name "*.rb"
ls
ls -l Gemfile*
ls *.rb
ls -R *.rb
ls -r *.rb
find app lib -name *.rb
type find
readlink -f /usr/bin/find
readlink /usr/bin/find
man readlink
readlink -F /usr/bin/find
readlink /usr/bin/find
ls -l /usr/bin/find
find . *.rb
find .
find . -name *.rb
find . -name "*.rb"
find app lib -name "*.rb"
touch app/controllers/something.rbs
find app lib -name "*.rb"|xargs
find app lib -name "*.rb"|xargs wc -l
find app lib -name "*.rb"|xargs -J % wc -l %
find app lib -name "*.rb"|xargs wc -l
grep -r class --include="*.rb"
grep -r --include="*.rb"
grep -r class --include="*.rb" .
grep -r "^[[:space:]]*class\b" --include="*.rb" .
grep -r "^[[:space:]]*class\b" --include="*.rb" app lib
grep -rh "^[[:space:]]*class\b" --include="*.rb" app lib
grep -rl "^[[:space:]]*class\b" --include="*.rb" app lib
find app lib -name "*.rb"|xargs grep -r "^[[:space:]]*class\b"
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\b"
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b"
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b"
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do grep -r "\b$class\b" app lib --include="*.rb"; find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do grep -r "\b$class\b" app lib --include="*.rb"; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo "$class"; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo "$class"; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do grep -r "\b$class\b" app lib --include="*.rb"; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do grep -lr "\b$class\b" app lib --include="*.rb"; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb"` $class; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb" | wc -l` $class ; done
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb" | wc -l` $class ; done| sort -n
cd ../discourse/
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb" | wc -l` $class ; done| sort -n
find app lib -name "*.rb"|xargs grep -h "^[[:space:]]*class\|module\b" |cut -d ' ' -f 2| while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb" | wc -l` $class; done| sort -n
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" |
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b"
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" | sed 's/^[[:space:]]*//' | cut -d ' ' -f 2| while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb" | wc -l` $class ; done| sort -n
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" | sed 's/^[[:space:]]*//' | cut -d ' ' -f 2
find app lib -name "*.rb"|xargs grep -rh "^[[:space:]]*class\|module\b" | sed 's/^[[:space:]]*//' | cut -d ' ' -f 2| sort | uniq |while read class; do echo `grep -lr "\b$class\b" app lib --include="*.rb" | wc -l` $class ; done| sort -n
echo "hello world" | cut -f 1
echo "hello world" | cut -d " " -f 1
echo "hello world:hi" | cut -d " :" -f 1
echo "hello world:hi" | cut -d ":" -f 1
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