files bash.sh

# find by name
find . -name 'MYTEXT*'

# find text in files
grep -r "MYTEXT" .

# find dir by name
find . -name "MYTEXT" -type d

# free space
http://stackoverflow.com/questions/8110530/check-free-disk-space-for-current-partition-in-bash

df -k .
df -h

# Folder size
du -hcs

# File size
du -h filename

# List out the size of each file and directory (recursively) and sort by size decendingly
du -a -h --max-depth=1 | sort -hr

# List images by size
find . \( -iname \*.png -o -iname \*.jpg \) -not -path "./api*" -print0 | xargs -0 ls -l | sort -k5 -r | head -45

# Recursively count all the files in a directory
find . -type f | wc -l

# How do I remove all .pyc files from a project?
find . -name \*.pyc -delete

# How to remove duplicated files in a directory?
http://superuser.com/a/691551/419124

fdupes -rf . | grep -v '^$' > files
... # check files
xargs -a files rm -v

# How to find duplicate files with same name?
http://stackoverflow.com/a/2109068/1334996

ls -1 | sort | uniq -c | grep -v " 1 "

# Total used disk space by files modified in last 30 days
find . -type f -mtime -30 -exec du -ks {} \; | cut -f1 | awk '{total=total+$1}END{print total/1024}'

# Count results
<expr> | wc -l

# Resume the stopped transfer. Note that the remote server must have rsync installed as well
rsync -P --rsh=ssh userid@remotehost.com:bigdata.tgz ./bigdata.tgz