fzf

fzf_helper.bash

fzf --preview="head -n 20 {}"

find . -type f -name "*RequestInfo.java" | fzf --preview="head -n 30 {}" 
# same
fzf --query="RequestInfo.java$" --preview="head -n 30 {}" 
# almost same
fzf --filter="RequestInfo.java$" --preview="head -n 25 {}"
# Case insensitive regex
fzf --filter="(?i)RequestInfo.java$" --preview="head -n 20 {}"

# Much faster than grep for interactive use
fzf < large_file_list.txt

# Kill processes
kill $(ps aux | fzf | awk '{print $2}')

# Combined file and directory search
fzf --preview='
if [ -d {} ]; then
    tree -C {} | head -50
else
    bat --color=always {} 2>/dev/null || head -100 {}
fi'


fzf --preview="git log --oneline {} | head -10"  # Git history
fzf --preview="file {}"                          # File type info
fzf --preview="stat {}"                          # File statistics
fzf --preview="exiftool {} | head -20"           # Image metadata

# With process details
ps aux | fzf --preview="echo 'PID: {2}' && echo 'Command: {11}'"

# Search only specific file types
fd -t f -e java -e py | fzf  # Only Java and Python files

# Ignore node_modules, .git, etc.
fd --hidden --no-ignore | fzf  # Include hidden files but respect .gitignore


# Add to .bashrc/.zshrc
export FZF_DEFAULT_COMMAND='fd --type f --hidden --follow --exclude .git'
export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
export FZF_ALT_C_COMMAND="fd --type d --hidden --follow --exclude .git"

# Now fzf is integrated into your shell workflow!