Thanks vgersh99 for the code
But in my OS nawk is not supporting But if i go for awk this command work fine for me in SHELL But when i keep this thing in a shell script it won't works. Getting error unable to read passwd.txt file.
Hi all,
can you please help me in this one..
i have a many scripts in a directory & i get many requests to change the code of a particular script.
for example file abc.txt contains
#!/bin/bash
mumbai 102403445
chennai 123980123
delhi 3456268468
kolkata 465376832
#kolkat 462945959
... (3 Replies)
Hi All,
I want to edit a file using shell script..For ex...a file called /etc/passwd..here I am searching for "ftp" if it is there just change it to "tftp" without using any temporary file. (3 Replies)
Dear unix gurus,
I have a data file with header information about a subject and also 3 columns of n rows of data on various items he owns. The data file looks something like this:
adam peter
blah blah blah
blah blah blah
car
01 30 200
02 31 400
03 57 121
.. .. ..
.. .. ..
n y... (8 Replies)
Col1 Col2 Col3 Col4
12 Completed 08 0830
12 In Progress 09 0829
11 For F U 07 0828
Considering the file above, how could i replace the third column the most efficient way? The actual file size is almost 1G. I am... (10 Replies)
I have the follwoing file:
This looks to be : seperated.
For the first field i want only the file name without ".txt" and also i want to remove "+" sign if the second field starts with "+" sign.
Input file:
Output file:
Appreciate your help (9 Replies)
What is an efficient way to remove all lines from the input file which contain a file name?
inputfile:
=======================
# comment
# comment
# comment
5 8 10 /tmp
5 8 10 /var/run
5 8 10 /etc/vfstab
5 8 9 /var/tmp
5 8 10 /var/adm/messages... (7 Replies)
hey i want to over write the fourth field of a ':' delimited file by first finding the required row by using grep.
i have done the following
cat file | grep no. | awk -F ':' { $4=count; print $1:$2:$3:$4;}
the correct values are being printed but nothin is bein added to the file..please... (5 Replies)
Hi,
I lack the utter fundamentals on how to craft an awk script.
I have hundreds of text files that were mangled by .doc format so all the lines are broken up so I need to join all of the lines of text into a single line. Normally I use vim command "ggVGJ" to join all lines but with so many... (3 Replies)
Hey guys,
I'm trying to learn a bit of awk/sed and I'm using different sites to learn it from, and i think I'm starting to get confused (doesn't take much!).
Anyway, say I have a csv file which has something along the lines of the following in it:"test","127.0.0.1","startup... (6 Replies)
Hello,
Similar question to my previous posts. I am sorry for the trouble...
Just checked my old threads but I can not implement any solution into this case..
My aim is to grab each line in fileA, check it in fileB and merge with fileC (tab separated) in corresponding line as given below:
FileA:... (2 Replies)
Discussion started by: baris35
2 Replies
LEARN ABOUT OPENDARWIN
d_passwd
d_passwd(4) File Formats d_passwd(4)NAME
d_passwd - dial-up password file
SYNOPSIS
/etc/d_passwd
DESCRIPTION
A dial-up password is an additional password required of users who access the computer through a modem or dial-up port. The correct pass-
word must be entered before the user is granted access to the computer.
d_passwd is an ASCII file which contains a list of executable programs (typically shells) that require a dial-up password and the associ-
ated encrypted passwords. When a user attempts to log in on any of the ports listed in the dialups file (see dialups(4)), the login program
looks at the user's login entry stored in the passwd file (see passwd(4)), and compares the login shell field to the entries in d_passwd.
These entries determine whether the user will be required to supply a dial-up password.
Each entry in d_passwd is a single line of the form:
login-shell:password:
where
login-shell The name of the login program that will require an additional dial-up password.
password An encrypted password. Users accessing the computer through a dial-up port or modem using login-shell will be required to
enter this password before gaining access to the computer.
d_passwd should be owned by the root user and the root group. The file should have read and write permissions for the owner (root) only.
If the user's login program in the passwd file is not found in d_passwd or if the login shell field in passwd is empty, the user must sup-
ply the default password. The default password is the entry for /usr/bin/sh. If d_passwd has no entry for /usr/bin/sh, then those users
whose login shell field in passwd is empty or does not match any entry in d_passwd will not be prompted for a dial-up password.
Dial-up logins are disabled if d_passwd has only the following entry:
/usr/bin/sh:*:
EXAMPLES
Example 1: Sample d_passwd file.
Here is a sample d_passwd file:
/usr/lib/uucp/uucico:q.mJzTnu8icF0:
/usr/bin/csh:6k/7KCFRPNVXg:
/usr/bin/ksh:9df/FDf.4jkRt:
/usr/bin/sh:41FuGVzGcDJlw:
Generating An Encrypted Password
The passwd (see passwd(1)) utility can be used to generate the encrypted password for each login program. passwd generates encrypted pass-
words for users and places the password in the shadow (see shadow(4)) file. Passwords for the d_passwd file will need to be generated by
first adding a temporary user id using useradd (see useradd(1M)), and then using passwd(1) to generate the desired password in the shadow
file. Once the encrypted version of the password has been created, it can be copied to the d_passwd file.
For example:
1.
Type useradd tempuser and press Return. This creates a user named tempuser.
2. Type passwd tempuser and press Return. This creates an encrypted password for tempuser and places it in the shadow file.
3. Find the entry for tempuser in the shadow file and copy the encrypted password to the desired entry in the d_passwd file.
4. Type userdel tempuser and press Return to delete tempuser.
These steps must be executed as the root user.
FILES
/etc/d_passwd dial-up password file
/etc/dialups list of dial-up ports requiring dial-up passwords
/etc/passwd password file
/etc/shadow shadow password file
SEE ALSO passwd(1), useradd(1M), dialups(4), passwd(4), shadow(4)WARNINGS
When creating a new dial-up password, be sure to remain logged in on at least one terminal while testing the new password. This ensures
that there is an available terminal from which you can correct any mistakes that were made when the new password was added.
SunOS 5.10 2 Sep 2004 d_passwd(4)