How do you display in shell?
There are many ways to display a text file in a shell script. You can simply use the cat command and display back output on screen. Another option is to read a text file line by line and display back the output. In some cases you may need to store output to a variable and later display back on screen.
How do I display AM or PM in lower case in Unix?
Options Related to Formatting
- %p: Prints the AM or PM indicator in uppercase.
- %P: Prints the am or pm indicator in lowercase. Note the quirk with these two options. A lowercase p gives uppercase output, an uppercase P gives lowercase output.
- %t: Prints a tab.
- %n: Prints a new line.
How do I display time in Linux?
To display date and time under Linux operating system using command prompt use the date command. It can also display the current time / date in the given FORMAT. We can set the system date and time as root user too.
How do I list all shells in Linux?
cat /etc/shells – List pathnames of valid login shells currently installed. grep “^$USER” /etc/passwd – Print the default shell name. The default shell runs when you open a terminal window. chsh -s /bin/ksh – Change the shell used from /bin/bash (default) to /bin/ksh for your account.
How do I see disk usage in Linux?
df command – Shows the amount of disk space used and available on Linux file systems. du command – Display the amount of disk space used by the specified files and for each subdirectory. btrfs fi df /device/ – Show disk space usage information for a btrfs based mount point/file system.
How do I see hidden files in Linux?
To view hidden files, run the ls command with the -a flag which enables viewing of all files in a directory or -al flag for long listing. From a GUI file manager, go to View and check the option Show Hidden Files to view hidden files or directories.
How do I display the current time in Linux shell?
Sample shell script to display the current date and time
#!/bin/bash now=”$(date)” printf “Current date and time %sn” “$now” now=”$(date +’%d/%m/%Y’)” printf “Current date in dd/mm/yyyy format %sn” “$now” echo “Starting backup at $now, please wait…” # command to backup scripts goes here # …