=====Ubuntu/Linux File Commands=====
return to DevLinux

====Tar-Zip Directory====
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# 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 Largest Files / Directories====
===Files===
Note path and size variables
Source: http://stackoverflow.com/questions/8943154/
%%
$ find ./ -type f -size +5M -print0 | xargs -0 ls -1hsS
11M ./foo/bar/some.log
6.4M ./sample.txt
5.1M ./another/snafu.zip
%%
===Directories===
%%
$ du -B M --max-depth=5 . | sort -n -r | less
898M ./hg
536M ./tmp
362M ./hg/foo
%%

====Find Files====
===Basic Example===
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# basic find: find ROOT_DIR -name FILE_NAME
$ find . -name *.log
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===Find Image Files===
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$ find . -type f -name *.jpg -o -name *.png -o -name *.gif | less
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===Grep By File Type===
ref: http://www.unix.com/302166849-post3.html
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$ find . -type f -name '*.log' -exec grep -Hn 'foo' {} \; | less
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====Find/Chmod====
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# chmod only dirs
$ find /dir/to/chmod -type d -exec chmod 755 {} \;

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

====Diff====
===Directories===
%%
# 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
%%

====References====
[[http://www.codecoffee.com/tipsforlinux/articles/21.html Using "find"]] (codecoffee.com)
[[http://cognitivesandbox.com/posts/finding-large-files/ Finding Large Files]] (cognitivesandbox.com)
[[http://www.cyberciti.biz/faq/how-do-i-compress-a-whole-linux-or-unix-directory/ Compress a Whole Linux Directory]] (cyberciti.biz)