The setenv command alters the environment (standard settings) of the program. The environment contains parameters for the commands that the user does not want to specify every time a command is used.
For example, if you want to define a short name for a particular directory:
allows you subsequently to refer to the subdirectory called postscript as $PS
uname (short for unix name) is a software program in Unix and Unix-like computer operating systems that prints the name, version and other details about the current machine and the operating system running on it.
Hello again !
Thanks for response of my first question. there is my second quesiton why i have local.profile instead of .profile file ?
my all files in pwd shoes local. before any file.
is anybody can tell me about that ?
Thanks
Abid Malik (5 Replies)
Hi, My account is : abcd
I belong to a group: pqrs
Some thing straneg happened yesterday.
My .cshrc and .login got overwritten into pqrs's .cshrc and .login
I obviously did not explicitly overwrite pqrs's .cshrc.
Are there any reasons how this could have happened indirectly due to... (5 Replies)
All,
I had a request to delete filed under a directory that was 35 days old . And they asked me to scedule it in CRON . I have done that .
I have use find and delete with mtime to perfrom this task .
But my script is not deleting this .cshrc,.exrc,.login,.profile,.sh_history file... (1 Reply)
Hi..
i was just looking to know the diffrence between this three terms
1) .cshrc 2) .login 3) .profle but iam failed to findout the exact diffrent
Please can any one share the diffrence between this
regards
Syed (1 Reply)
i am new to awk scripting. i couldn't figure out how this awk script works can anyone explain?
#!/bin/awk -f
{
for( x=1; x<=NF; ++x) {
if( x == 3 ) {
continue
}
print x, $x
}
}
thank you and regards (1 Reply)
I have gotten a gig to teach someone how to use a VPN client for a UNIX server on a MAC os. The problem is I have never used UNIX, dont mess with VPN's (my dad has a VPN that I have used a couple of times). I'm currently taking a crash course on UNIX but I was wondering if anyone could help me with... (0 Replies)
Hi,
I'm running a rdt (run dot tcl) command, and come accross this line:
alias abc 'set ARGS =(\!*); source home123/abc/$ARGS/setup'
What does the command exactly do?
Please help. (6 Replies)
OSX 10.12.3, default bash terminal.
Consider this code and note it is calling 'sh' inside the code...
#!/bin/sh
echo '1\n2\n2\n3\n5' > /tmp/text
hexdump -C /tmp/text
/bin/echo '1\n2\n3\n4\n5' > /tmp/text
hexdump -C /tmp/text
Now view the interactive mode below, note the underlying shell is... (6 Replies)
Discussion started by: wisecracker
6 Replies
LEARN ABOUT PLAN9
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)