There are a number of ways to accomplish that. Assuming there is a direct one-to-one mapping between the two input files, then you could do something like:
(not tested, and it would make sense to add some handling in case a user exists, etc. Additionally, should your usernames (heaven forbid!) or password have whitespaces, then you might need to use a delimeter with the paste command, and use IFS=... between the while and read (and remove x, which is only used to ensure any junk after pass is removed))
Last edited by Scott; 10-08-2018 at 09:11 AM..
Reason: Added quotes around variable usage
Hi all, I'm confused about the proper syntax for multi-conditional if then statements. I'm trying to set limitations on info input on the command line.. i.e.
if ] ;then
$x=$vr1
else
print "You have entered an invalid option."
Can someone please clue me in on what is wrong with my syntax;... (3 Replies)
I want to do multiple comparisons on a series of numbers from an array:
I send the numbers in file1 through want to print out some info from file2 based on some conditions.
The syntax just isn't correct???
awk '
NR==FNR{
a=$0
next
... (2 Replies)
Please help me. I have been doing this for several hours.
Here is the code
if then
echo a b c d >> file.txt
echo 1111 >> file.txt
fi
The reason I want the two echo is because I want these statements printed on multiple lines. I keep getting error .
First it tells me... (2 Replies)
Hi,
Hav automated a process, and it is working fine.
for first process alone
status = ` ps -ef |grep a `
if
then
echo " Success" > temp/logfile
else
echo " Failure" > temp/logfile
fi
Now I hav to write script to automated some 2 process and then send mail using cron..
... (5 Replies)
how can we execute multiple statements in
else condition
i have
if
then
statement
else
statements
fi
in else condition i have multiple statements
but it executing only one statement
is there any way to execute multiple statements (4 Replies)
Hi ,
I have a peculiar problem.
i have an if block like this
if ;
then
echo " todays date is " ${date} >> log_file
echo " file count is " $ count >> log_file
mv filename1 filename 2
else
echo "no files available ">> log_file
fi
the echo statement "no files available " is not... (2 Replies)
Hi All,
I need to check for 3 conditions and if all the 3 are not satified need to say that services are not running....
is the below code correct.
#********** Check to see if Service 1 is still running**************
if
then
echo "$datetimestamp: Service1 is not running" >>... (4 Replies)
Hi everyone,
May you help me with the correct syntax of the follow bash statements please
X=10
if ]; then
echo "The value is between 1 and 5"
for ((i=1;i<=${X})); do
echo $i
done
else if ]; then
echo "The value is between 6 and 10"
for ((i=1;i<=${X})); do
... (5 Replies)
I'm working on a script for class as a final project. We have to ask for values (city, state, zip) five times, but the state can only be MI, IN, IL, or OH. I'm trying to do this with a while loop inside of a while loop, but I have no idea how to do it properly.
Here's what I have so far:
... (3 Replies)
exmaple:
file1 and file2 has 1 bit
if
then
exit
else
send out email
fi
if
then
exit
else
send out email
fi
it exits the 1st if. did not continue with my 2nd if. thanks in advanced.
Please use CODE tags are suggested on every page when you post an item in... (7 Replies)
Discussion started by: lawsongeek
7 Replies
LEARN ABOUT REDHAT
pwck
PWCK(1) General Commands Manual PWCK(1)NAME
pwck - verify integrity of password files
SYNOPSIS
pwck [-sr] [passwd shadow]
DESCRIPTION
pwck verifies the integrity of the system authentication information. All entries in the /etc/passwd and /etc/shadow are checked to see
that the entry has the proper format and valid data in each field. The user is prompted to delete entries that are improperly formatted or
which have other incorrectable errors.
Checks are made to verify that each entry has
- the correct number of fields
- a unique user name
- a valid user and group identifier
- a valid primary group
- a valid home directory
- a valid login shell
The checks for correct number of fields and unique user name are fatal. If the entry has the wrong number of fields, the user will be
prompted to delete the entire line. If the user does not answer affirmatively, all further checks are bypassed. An entry with a dupli-
cated user name is prompted for deletion, but the remaining checks will still be made. All other errors are warning and the user is
encouraged to run the usermod command to correct the error.
The commands which operate on the /etc/passwd file are not able to alter corrupted or duplicated entries. pwck should be used in those
circumstances to remove the offending entry.
OPTIONS
By default, pwck operates on the files /etc/passwd and /etc/shadow. The user may select alternate files with the passwd and shadow parame-
ters. Additionally, the user may execute the command in read-only mode by specifying the -r flag. This causes all questions regarding
changes to be answered no without user intervention. pwck can also sort entries in /etc/passwd and /etc/shadow by UID. To run it in sort
mode pass it -s flag. No checks are performed then, it just sorts.
FILES
/etc/passwd - user account information
/etc/shadow - encrypted password information
/etc/group - group information
SEE ALSO group(5), passwd(5), shadow(5), usermod(8)DIAGNOSTICS
The pwck command exits with the following values:
0 Success
1 Syntax Error
2 One or more bad password entries
3 Cannot open password files
4 Cannot lock password files
5 Cannot update password files
AUTHOR
Julianne Frances Haugh (jockgrrl@ix.netcom.com)
PWCK(1)