content/wiki/sh.org

# All files in current directory
for file in *; do echo "${file}"; done

# Files only
for file in *; do if [ -f "$file" ]; then echo "$file"; fi; done

# Directories only
for file in *; do if [ -d "$file" ]; then echo "$file"; fi; done

sudo exiftool -r -all= -ext jpg -ext png .

optipng -o7 image.png

zcat /var/log/nginx/access.log.*.gz | goaccess /var/log/nginx/access.log -

echo /etc/*_ver* /etc/*-rel*; cat /etc/*_ver* /etc/*-rel*

# Replace text within file
sed -i '' 's/SEARCH_TEXT/REPLACEMENT_TEXT/g' file.txt

# Delete empty lines
sed '/^\s*$/d'