Tagged: linux

2016-07-01

change the ownership of a symbolic link itself

$ man chown
...
       -h, --no-dereference
              affect symbolic links instead of any referenced file
              (useful only on systems that can change the ownership
               of a symlink)
...

2016-01-21

Find all repositories and gc them all

$ find . -name .git -type d -execdir git gc --agggressive \;

2014-08-09

find all jar files and print

I thought I need to print some jar files’ entries in my Java ME SDK’s lib directory.

$ zipinfo -1 cldc_1.8.jar
META-INF/
...
java/util/logging/StreamHandler.class
$

Then I tried to store those output to a text file.

$ zipinfo -1 cldc_1.8.jar > cldc_1.8.jar.txt
$ cat cldc_1.8.jar.txt
META-INF/
...
java/util/logging/StreamHandler.class
$

Then I need to change line delimiters for Windows..

$ unix2dos.exe cldc_1.8.jar.txt
unix2dos: converting file cldc_1.8.jar.txt to DOS format...
$

I realized I can do this in one command.

$ zipinfo -1 cldc_1.8.jar | unix2dos > cldc_1.8.jar.txt
$

And, finally, I can print all jar files entries in a command.

$ for j in *.jar;do zipinfo -1 $j | unix2dos > $j.txt;done
$