This tutorial explains Linux “expand” command, options and its usage with examples. expand – convert tabs to spaces. Description : Convert tabs in each FILE to spaces, writing to standard output. With no FILE, or when FILE is -, read standard input. Usage : expand [OPTION]… [FILE]… Options : -i, –initial do not convert tabs … Read more
This tutorial explains Linux “unexpand” command, options and its usage with examples. unexpand – convert spaces to tabs Description : Convert spaces in each FILE to tabs, writing to standard output. With no FILE, or when FILE is -, read standard input. Usage : unexpand [OPTION]… [FILE]… Options : -a, –all convert all blanks, instead … Read more
This tutorial explains Linux “newgrp” command, options and its usage with examples. What is newgrp Command? The newgrp command in Linux is used to log in to a new group. It allows users to change their default group during a login session. If a hyphen (“-“) is included as an argument, the user’s environment is … Read more
This tutorial explains Linux “quotaon” command, options and its usage with examples. quotaon – turn filesystem quotas on Description : quotaon announces to the system that disk quotas should be enabled on one or more filesystems. The filesystem quota files must be present in the root directory of the specified filesystem and be named either … Read more
This tutorial explains Linux “chpasswd” command, options and its usage with examples. chpasswd – update password file in batch Description : chpasswd reads a file of user name and password pairs from standard input and uses this information to update a group of existing users. Without the -e switch, the passwords are expected to be … Read more
This tutorial explains Linux “groupdel” command, options and its usage with examples. groupdel – Delete a group Description : The groupdel command modifies the system account files, deleting all entries that refer to group. The named group must exist. You must manually check all filesystems to insure that no files remain with the named group … Read more
This tutorial explains Linux “groupadd” command, options and its usage with examples. groupadd – Create a new group Description : The groupadd command creates a new group account using the values specified on the command line and the default values from the system. The new group will be entered into the system files as needed. … Read more
This tutorial explains Linux “groupmod” command, options and its usage with examples. groupmod – Modify a group Description : The groupmod command modifies the definition of the specified GROUP by modifying the appropriate entry in the group database. Usage : groupmod [options ] group Options : -g, –gid GID The group ID of the given … Read more
This tutorial explains Linux “quotaoff” command, options and its usage with examples. quotaff – turn filesystem quotas off Description : The quotaoff command disables disk quotas for one or more file systems. By default, both user and group quotas are disabled. An error (EPERM) will be returned if the quota.user and quota.group files are not … Read more
This tutorial explains Linux “printenv” command, options and its usage with examples. printenv – print all or part of environment Description : printenv prints the values of the specified environment VARIABLE(s). If no VARIABLE is specified, print name and value pairs for them all. Usage : printenv [VARIABLE]… printenv OPTION Options : -0, –null end … Read more
