# cp *.jpg /home/ravi/Ĭopy all file having extension .jpg to /home/ravi/ directory. # cp origfile /directory/subdir/newfileĬopy origfile to given directory with new file name . The copy will be located in the directory /directory/subdir, and will be named origfile. # cp origfile /directory/subdir/.Ĭreates a copy of the file in the working directory named origfile.
If you want to prompted when overwrite than use -i option with cp command. This make a copy of origfile to filename newfile. This will create a file test4 and output of cat command is piped to sort and result will be redirected in a newly created file. # cat test test1 test2 test3 | sort > test4 This will create a file called test3 and all output will be redirected in a newly created file. Here, contents of test file will be appended at the end of test1 file.
# cat test > test1Īppends in existing file with ‘>’ (double greater than) symbol. Existing contents of test1 will be overwritten by contents of test file. It redirect standard output of a file into a new file else existing file with ‘>’ (greater than) symbol. It show contents of file with line number. The text will be written in testFile file. And Awaits input from user, type desired text and press CTRL+D (hold down Ctrl Key and type ‘d’) to exit. It show contents of file1 and file2 # cat > testFile It show contents of file in terminal # cat file1 file2 cat command allows us to create single or multiple files, view contain of file, concatenate files and redirect output in terminal or files. The cat (short for “concatenate”) command is one of the most frequently used command in Linux/Unix like operating systems. It create empty file # touch myfile.txt index.html home.php The touch command is a standard program for Unix/Linux operating systems, that is used to create, change and modify timestamps of a file. # mkdir -m 777 mydirĬreate the mydir directory, and set its permissions such that all users may read, write, and execute the contents. It make directory when parent directory is not exit.
It make multiple directory # mkdir -p ravi/folder1/innerFolder It make ravikant directory in current directory. mkdir commandĬreate the DIRECTORY(ies), if they do not already exist. Wherein with -ld parameters displays information of /tmp directory. With ls -l command list files under directory /tmp. With combination of -lS displays file size in order, will display big in size first. With combination of -lt will shows latest modification file or directory date as top. Ls -R option will list very long listing directory trees. The following command with ls -r option display files and directories in reverse order. Using -F option with ls command, will add the ‘/’ Character at the end each directory. With combination of -lh option, shows sizes in human readable format. Here option -a include hidden file in long list way. Here, ls -l (-l is character not one) shows file or directory, size, modified date and time, file or folder name and owner of file and it’s permission. Ls with no option list files and directories in bare format where we won’t be able to view details like file types, size, modified date and time, permission and links etc. It will give the whole path starting from the root ending to the directory. Linux pwd (print working directory) command displays your location currently you are working on. /Ĭhange current directory to two level up parent directory. # cd -Ĭhange current directory to previous directory. In Linux ‘cd’ (Change Directory) command is one of the most important and most widely used command for newbies as well as system administrators.Ĭhange from current directory to /usr/local.Ĭhange current directory to parent directory. Like copy and move file, search or find file an d folder in linux server. To manage linux server you need to know some basic linux/unix command to perform action on Server.
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