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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