Hi All,
May be this is a very simple question...
$ b=8
$ readonly b
$ echo $b
8
$ b=90
-bash: b: readonly variable
$ unset b
-bash: unset: b: cannot unset: readonly variable
I m not able to change the readonly mode of variable b
Please help me out..
Thanks
Nidhi (2 Replies)
Hello all,
my unix is bash based and the finger command output is:
Login Name Tty Idle LoginTime Office
amos.john Amos John pts/26 1 Dec 5 16:18 (77.100.22.07)
What am trying to achieve is extract the Login (amos.john) and Name (Amos John) from this output without using awk or sed.
... (1 Reply)
Hi everyone,
I'm trying to extract the user name and full name from the finger command without using sed or awk.
Any pointers?
Thanks in advance. (6 Replies)
can I use unset to unset all the variables in a shell sciprt?
VAR1=1
VAR2=2
VAR3=3
unset
whether this unset will afftect any system variables?
Thanks, (3 Replies)
Could someone please tell me how to unset your .bashrc? I have tried all of these. I can't find anything useful from google.
unset -f .bashrc
unset .bashrc (9 Replies)
I'm wondering, is the number of variables will affect execution time of my bash script or maybe affect the cpu workload, cpu memory, etc ?
If I create so many variables, should I unset each one of that variables after I used them or after I think they are no longer needed?
and if my script... (2 Replies)
how to extract user machine name for current terminal using finger command
below command gives machinename for all session , is it possible to filter it to only currernt terminal ?
finger -b -p $LOGNAME | grep from (12 Replies)
I have a script with a $PASSWORD variable. I unset it right after using it, just to minimize the chance it could be left around for a snooper. That worked just fine... until I used a password with a value of "P@ssw0rd" Now, unset (even with -f, even with the variable enquoted) tells me: unset:... (1 Reply)
Hi,
Can someone tell what is the path for "unset", I tried "which" command but getting below error
# which unset
/usr/bin/which: no unset in (/usr/lib/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin/:/root/bin) (9 Replies)
Discussion started by: stew
9 Replies
LEARN ABOUT ULTRIX
chfn
chfn(1) General Commands Manual chfn(1)Name
chfn - change system finger entry
Syntax
chfn [ loginname ]
Description
The command is used to change information about users. This information is used by the program, among others. It consists of the user's
real name, office room number, office phone number, and home phone number. The command prompts the user for each field. Included in the
prompt is a default value, which is enclosed between brackets. The default value is accepted simply by typing <CR>. To enter a blank
field, type the word `none'. This is an example:
% chfn
Changing finger information for doe
Name [John Doe]:
Office number [ABC-1/K0]: DEF-2/K1
Office Phone []: 1863
Home Phone [5771546]: none
The command allows phone numbers to be entered with or without hyphens. No entries may contain colons, commas, or control characters.
It is a good idea to run after running to make sure everything is the way you want it.
The optional argument loginname is used to change another person's finger information. This can only be done by the superuser.
Restrictions
The encoding of the office and extension information is installation dependent.
Because two users may try to write the file at once, a synchronization method was developed. On rare occasions, a message that the pass-
word file is "busy" will be printed. In this case, sleeps for a while and then tries to write to the file again.
If the passwd entry is distributed from another host will not modify it.
See Also
chsh(1), finger(1), passwd(1), passwd(5yp)chfn(1)