# zip /path/to/dir
$ cd /path/to
$ tar -zcvf dir.tar.gz dir

# unzip
$ tar -zxvf dir.tar.gz

# list files in zipped archive
$ tar -tvf dir.tar.gz | less

# read content of zipped file (without unzipping)
$ zcat file.gz | less

$ find . -size +200k -type f -print0 | xargs -0 ls -Ssh1 | head
2.4M ./foo/bar/some.log
616K ./sample.txt
280K ./another/snafu.zip

$ find . -size +200k -exec du -sk {} \; | sort -nr | less
2364    ./foo/bar/some.log
616     ./sample.txt
280     ./another/snafu.zip

$ du -B M --max-depth=5 . | sort -n -r | less
898M    ./hg
536M    ./tmp
362M    ./hg/foo

# basic find: find ROOT_DIR -name FILE_NAME
$ find . -name *.log

$ find . -type f -name *.jpg -o -name *.png -o -name *.gif | less

$ find . -type f -name '*.log' -exec grep -Hn 'foo' {} \; | less

# chmod only dirs
$ find /dir/to/chmod -type d -exec chmod 755 {} \;

# chmod only files
$ find /dir/to/chmod -type f -exec chmod 644 {} \;

# with preferred (hg) diff syntax
server:/opt/foo# diff -u conf/ /tmp/foo-conf-back/
diff: conf/cron: No such file or directory
diff: /tmp/foo-conf-back/cron: No such file or directory
Common subdirectories: conf/cron.d and /tmp/foo-conf-back/cron.d
diff -u conf/emailserver.properties /tmp/foo-conf-back/emailserver.properties
--- conf/emailserver.properties 2011-04-14 10:04:47.000000000 -0700
+++ /tmp/foo-conf-back/emailserver.properties      2011-05-03 09:53:42.000000000 -0700
@@ -1,3 +1 @@
-EmailServer=monty.python.com
-EmailTo=mpalin@mailhost.monty.python.com
+diff test
Only in /tmp/foo-conf-back/: lol.conf

# list only files that have changed
server:/opt/foo# diff -q conf/ /tmp/foo-conf-back/
diff: conf/cron: No such file or directory
diff: /tmp/foo-conf-back/cron: No such file or directory
Common subdirectories: conf/cron.d and /tmp/foo-conf-back/cron.d
Files conf/emailserver.properties and /tmp/foo-conf-back/emailserver.properties differ
Only in /tmp/foo-conf-back/: lol.conf