That would depend on what shell you're using. Most seem to have a command similar to "echo x" which will print x to the terminal.
With the # symbol.
The special line at the beginning of the script is only necessary if you want the script to be run by a certain command interpreter that is different from your logon shell or because you don't know what environment the user of the shell might be running in. It is a special comment line that looks like: #!/command-name such as: #!/usr/bin/ksh which causes the ksh interpreter to be used for the rest of the shell script.
use python, shell is stupid
sys.argv is a way to access command line arguments in Python. sys.argv is an array of all the command line parameters, where the first value is the name of the file being run. For example, let's say you have a python script named example.py that looks like this: import sys print(sys.argv) This script will simply print the command line parameters in an array. If, for example, you run the script from a command line as python example.py param1 param2 the output will be ['example.py', 'param1', 'param2']
In "bash" shell it can be achieved with command "read" #!/bin/bash echo "Hi There, what is your name?" read name echo $name
The echo command echoes out any of the command line arguments given to it. It is commonly used in shell scripts to echo what portions of the shell script are doing.
A shell script starts with the definition of the interpreter to use. Usually when one says ``shell script'', one means bash script. So a good first line would be #!/bin/bash This says that the program located in the filesystem at /bin/bash should be executed with this script as its input. With a bash script, you can simply start typing a list of commands. Furthermore it is possible to use logic and control structures like if, else, for, while, etc etc. See http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html for a good starting guide.
They are unprintable formatting characters. They indicate line and paragraph breaks for instance.
Linux shell scripting tutorials are available as pdf files or videos where a lecturer speaks over a video of a computer console. This is where you can watch someone code in the bash environment and follow along.
#!/bin/sh sed -e 's/\W\+/\n/g' | sort -u
i=1 while [ $i -le $# ] do grep -v Unix $i > $i done
According to the Linux+ Guide to Linux Certification 2nd ed., most configuration files on Linux systems are delimited using the colon symbol (:) while the awk command uses spaces or tabs as delimiters for each field in a line. SudoKing, please note that the hash symbol (#) allows the commenting of lines, not the delimiting of lines. This is not to be confused with a hashpling (such as #!/bin/bash) which is located on the first line in a shell script, and specifies the pathname to the shell that interprets the contents of the shell script.