Shell scripting.

Shell Programming and Scripting
1

Was wondering if someone could help me out. I get this error message each time I try to execute the code underneath.

/home/demon/some.sh: line 8: [: too many arguments

-------------------------------
Script contents:
-------------------------------

#!/bin/bash

SOME=`whoami`
echo $SOME

USER=`w -h |awk '{ print $1 }' |sort |wc`

if [ $USER = 5 ]; then
   grep $SOME 
fi

What I want to do is:
That the script stores the output of the whoami command in a
variable. Then, if the number of users logged into the system (not
unique) is equal to 5, it should grep /etc/passwd for
the contents of the variable I created above.

Any help thxz. Yeah you can post a complete new code don't mind.

2

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---------- Post updated at 07:31 AM ---------- Previous update was at 07:27 AM ----------

#!/bin/bash

me=$(whoami)
echo $me

USERS=$(w -h |awk '{ print $1 }' |sort -u|wc -l)

if [ "${USERS}" -eq 5 ]; then
   awk -v me="${me}" -F: '$1 == me' /etc/passwd 
fi
3

Ok will do in the future.

BTW I get these errors with the code you supplied.

line 1: USERS: command not found
line 8: [: : integer expression expected
4

works fine under Sun/Solaris.
Please post the exact script and error(s) encountered (using code tags).

---------- Post updated at 07:58 AM ---------- Previous update was at 07:55 AM ----------

try this:

#!/bin/bash
#set -x

me=$(whoami)
echo $me

typeset -i USERS=$(w -h |awk '{ print $1 }' |sort -u|wc -l)

if [ "${USERS}" -eq 5 ]; then
   awk -v me="${me}" -F: '$1 == me' /etc/passwd
fi
5

Just did some checking but still get these errors now...

line 1: USERS: command not found
line 8: [: : integer expression expected

I am running on CentOS re. 3.7.

6

see my last posting.

7

With this code I still get the above errors...

8 
#!/bin/bash
#set -x

me=$(whoami)
echo $me

typeset -i USERS=$(w -h |awk '{ print $1 }' |sort -u|wc -l)

if [ "${USERS}" -eq 5 ]; then
   awk -v me="${me}" -F: '$1 == me' /etc/passwd
fi

make sure you're using the correct snippet quoted above.
uncomment out the '#set -x', re-run the script and post the output, please.

9

Hey mate, thanks a lot for all the help!

It is working now!

~D~