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I am listing hidden files:
ls -ld .?*
And I get an output:
drwxrwxr-x 3 kisco kisco 4096 Jun 18 19:41 .shutter
drwx------ 6 kisco kisco 4096 Jun 17 11:07 .Skype
-rw------- 1 kisco kisco 12288 Jun 16 17:47 .swm
-rw------- 1 kisco kisco 360448 May 25 22:04 .swn
-rw------- 1 kisco kisco 12288 May 9 21:42 .swo
-rw------- 1 kisco kisco 12288 May 7 21:35 .swp
drwx------ 4 kisco kisco 4096 Jun 9 14:45 .thunderbird
-rw-rw-r-- 1 kisco kisco 4761 Feb 17 2013 .tmux.conf
lrwxrwxrwx 1 kisco kisco 33 Jun 19 08:25 .vim -> /home/kisco/.haskell-vim-now/.vim
drwxrwxr-x 4 kisco kisco 4096 Jun 17 19:40 .vim.20150619_082532
drwxrwxr-x 12 kisco kisco 4096 Jun 16 13:49 .vim_bak
-rw------- 1 kisco kisco 8214 Jun 19 12:19 .viminfo
lrwxrwxrwx 1 kisco kisco 35 Jun 19 08:25 .vimrc -> /home/kisco/.haskell-vim-now/.vimrc
-rw-rw-r-- 1 kisco kisco 10673 Jun 18 19:51 .vimrc~
-rw-rw-r-- 1 kisco kisco 10673 Jun 18 19:52 .vimrc.20150619_082532
-rw-r--r-- 1 kisco kisco 20480 Jun 16 17:48 .vimrc.swo
-rw------- 1 kisco kisco 12288 Jun 5 10:50 .vimscript.R.swp
drwx------ 2 kisco kisco 4096 Mar 16 13:19 .vnc
-rw------- 1 kisco kisco 50 Jun 19 11:14 .Xauthority
-rw------- 1 kisco kisco 0 May 15 17:39 .xsel.log
-rw-rw-r-- 1 kisco kisco 14 Mar 16 13:23 .xsession
-rw------- 1 kisco kisco 711 Jun 19 11:14 .xsession-errors
-rw------- 1 kisco kisco 1486 Jun 19 10:14 .xsession-errors.old
What do these mean? ->
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“>” overwrites an already existing file or a new file is created providing the mentioned file name isn't there in the directory. This means that while making changes in a file you need to overwrite certain any existing data, use the “>” operator. This sign is used to redirect the output to something else than stdout.
The symbol <> in MySQL is same as not equal to operator (!=). Both gives the result in boolean or tinyint(1). If the condition becomes true, then the result will be 1 otherwise 0.
what does an arrow after a command indicate. more commands are available.
ls -l. The -l option signifies the long list format. This shows a lot more information presented to the user than the standard command. You will see the file permissions, the number of links, owner name, owner group, file size, time of last modification, and the file or directory name.
It means the file in question is a symbolic link and the path after the -> is the target of the symbolic link
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