Unix Operating System Organization and its components
Unix Operating System: Unix is a popular and powerful multi-user operation system. It is a set of programs that acts
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How to schedule tasks on Linux using crontab
Cron in Linux Cron is a time-based job scheduler in Linux or Unix operation system. It is most suitable for
Continue readingHow to run program in background mode and run it after we logoff Linux system?
Nohup command in Linux nohup command is used to execute long running programs in background mode. Even if we logoff
Continue readingHow to append Timestamp to file name in Shell script
Create log file with current timestamp in Bash It is best practice to have log file in any shell script
Continue readingHow to redirect output to a file and standard output in Linux
Output redirection in Shell script There are times, we want to display status codes and error messages in standard output
Continue readingHow to parse input arguments with tokens in Bash script
Parse input or command line arguments in Bash script Bash script will take input values and produces output values. We
Continue readingHow to replace string and its all occurrence with another string using bash
Bash supports number of string manipulation operations. It is providing the option to replace the given string to another string.
Continue readingHow to check if directory exists or not using shell script
In some cases, we wants to check whether the directory is exists or not using shell script.If the directory exists,
Continue readingSwitching user using sudo command in Linux shell
Sudo command The sudo command is used to switch to another user.It will give the special priviledges to the user.It
Continue readingFind and replace a text in a file using Unix SED command
SED command stands for stream editor and it helps to perform lot of functions in files like searching,replacing,insertion or deletion.We
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