You can search for a word in a repo using several command line tools.

grep

# Searches in a single file only
grep "search_term" filename

# Recursive search, search in the directory and all files in it and its subdirectories
grep -r "search_term" directory

# Case insensitive
grep -ri "search_term" directory

# Show line numbers
grep -rn "search_term" directory

git grep (tracked files only)

git grep "search_term"

find (by filename)

# Find files by name
find . -name "*.rb"

# Find files containing text in name
find . -name "*controller*"

ripgrep (rg)

Ripgrep is a faster grep tool.

# Search for a word
rg "search_term"

# Case insensitive
rg -i "search_term"

# Show line numbers
rg -n "search_term"

# Show line numbers and context
rg -C 3 "search_term"

list files

# list files
ls


# long listing of files and directories
ll
# show the alias for ll
type -a ll   
=> ll is an alias for ls -lh

# list all files and directories, typically an alias for ls -a
la
# show the alias for la
type -a la   
la is an alias for ls -lAh

bash & zsh

Further reading on Bourne-Again SHell and Z Shell.

# show the man page for ls
man ls

# show the man page for man
man man

# show the man page for bash
man bash

# show the man page for zsh
man zsh

That’s it for now.