Basic Shell scriprt commands for Putty

Basic Shell scriprt commands for Putty, AskHareesh.blogspot.com

Basic Shell script commands for Putty

Navigating directories:

cd
…change directory, method used for moving from one folder to another.
cd foldername/foldername2
…would take you to foldername2.

cd ..
…moves up one directory.

cd /
…moves you to root.

pwd
…prints to console your present working directory – where you currently are.

List contents

ls
…list contents of current directory.

ls -l
…shows long format inc. group owner, size, date modified, permissions.

ls -a
…shows ALL files inc. hidden files.

ls -R
…lists contents of sub directories recursively.

ls -la
…the above options can be used at the same time.

ls foldername/foldername
…list items in folder without actually moving to it.

Creating files and directories/folders

touch file.html
…use the touch command to create files.

rm file.html
…use the rm command to remove a file.

mkdir myfolder
…use the mkdir command to create a new directory/folder.

rmdir myfolder
…use the rmdir command to remove a directory/folder, folder must be empty.

mv folder1/file.html folder2/file.html
…use the mv command to move a file. Can also be used to rename a file.

Compressing and backing up files and folders

zip -r foo.zip foo/
…compress the folder ‘foo’ and all of its contents into a zip file called ‘foo.zip’.

zip foo.zip foo.html
…compress the file’foo.html’ into a zip file called ‘foo.zip’.

File and directory/folder permissions and ownership

chmod 755 file.html
…changes the file.html file permissions, same for a folder.

chmod -r 755 myfolder
…changes permissions for that folder and all folders and files inside it recursively.

Here are the chmod octal numeric values
700: only owner can read
755: everyone can read but not write
775: only group can read and write
770: no-one but group can read
666: everyone can read and write
1777: everyone can read,write,execute

chown user:myself file.html
…changes the ownership of file.html to the user called ‘myself’.

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