The shell of send letter Post: 78425

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shell script to send a mail

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Good afternoon all, I want to ask how to change some letter in my file with other letter in spesific line eg. data.txt 1 1 1 0 0 0 0 for example i want to change the 4th line with character 1. How could I do it by SED or AWK. I have tried to run this code but actually did not...

LEARN ABOUT OPENDARWIN

chsh

CHSH(1)                                                            User Commands                                                           CHSH(1)

NAME

       chsh - change login shell

SYNOPSIS

       chsh [options] [LOGIN]

DESCRIPTION

       The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
       the login shell for her own account; the superuser may change the login shell for any account.

OPTIONS

       The options which apply to the chsh command are:

       -h, --help
           Display help message and exit.

       -R, --root CHROOT_DIR
           Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -s, --shell SHELL
           The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
       value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE

       The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
       and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
       in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
       back to its original value.

FILES

       /etc/passwd
           User account information.

       /etc/shells
           List of valid login shells.

       /etc/login.defs
           Shadow password suite configuration.

SEE ALSO

       chfn(1), login.defs(5), passwd(5).

shadow-utils 4.5                                                    01/25/2018                                                             CHSH(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

shell script to send a mail

Discussion started by: jayaramanit

2. Shell Programming and Scripting

Shell - Matching 3 letter file names

Discussion started by: PrasannaKS

3. Shell Programming and Scripting

within shell script send expect and if else

Discussion started by: mnmonu

4. Cybersecurity

Logging shell commands and send it out

Discussion started by: reaky