I have a secinario like , want to cat a file until the 123.txt gets empty ....for that i made below syntax, but looks not correct
cat 123.txt
ram
suresh
John
for chat in $(cat /tmp/t123.txt| head -1)
do
call=`grep -i incoming /home/$chat | wc -l `
if [ -n "$call" ]
then
echo " got incoming call from $chat "
else
echo "no incoming calls from $chat "
CHK=$(cat /tmp/t123.txt )
printf "1d\nw\nq\n" | ed -s $CHK
if [ $CHK -ge 1 ]
then
chat ++
else
exit 0
fi
done
My required o/p would be
got incoming call from ram
got incoming calls from suresh
got incoming calls from John
Note: new to shell scripting , trying afte longtime ... so appericiate your help here
while read chat # Read lines one by one
do
call=$(grep -c incoming /home/$chat)
if [ "$call" -gt 0 ]
then
echo "$call > 0"
else
echo "$call = 0"
fi
done < /tmp/t123.txt
...but I have absolutely no idea what CHK is supposed to be doing. More information please?
for chat in $(cat /tmp/123.txt| head -1) # cutting the 1st line of the file which should be ram in my case
do
call=`grep -i incoming /home/$chat | wc -l ` # search for incoming in /home/ram file and taking a count of it
if [ -n "$call" ]
then
echo " got incoming call from $chat "
else
echo "no incoming calls from $chat "
CHK=$(cat /tmp/123.txt )
printf "1d\nw\nq\n" | ed -s $CHK # removing teh first line of my file so that ram will get remove and suresh will come at the top
if [ $CHK -ge 1 ] # will check wther 123.txt is ge to 1 value
then
chat ++ # then i have to perform the same for action until the file gets empty
else
exit 0
fi
done
yes only names in /tmp/123.txt line by line as below
ram
suresh
John
my requirment is want to seach a pattern called " incoming" in file called /home/ram and then have to displayed that if there is incoming word in the file and then have to serach the same word in /home/suresh and display it and then have to serach the same word in /home/John file and display it and come out of the script.
#!/bin/ksh
while read chat # Read lines one by one
do
call=$(/home/$chat)
search=$(grep -c incoming $call) # need to have two variable and in second variable first variable will get subtuted.
if [ -z "$call" ]
then
if [ -z "$search" ]
echo "$chat have incoming "
else
echo "$chat dont have incoming "
fi
fi
done < /tmp/123.txt
From what you have said, presumably /home/$chat expands to the home directory for the user named by the expansion of $chat ( /home/ram , /home/suresh , and /home/John , respectively for the three lines in /tmp/123.txt ).
Therefore, you should get diagnostics from the Korn shell similar to:
-ksh: /home/ram: cannot execute [Is a directory]
-ksh: /home/suresh: cannot execute [Is a directory]
-ksh: /home/John: cannot execute [Is a directory]
while setting the variable call to an empty string. Directories are not regular files. (Therefore, executing a directory does not work.) They are not text files. (Therefore, grep ing a directory probably won't give you anything useful.) Filenames (including directories) on UNIX and UNIX-like systems are case-sensitive. User login names on UNIX and UNIX-like systems are almost always entirely lower-case. John might actually be a login name on your system, but it is highly suspicious.
Having done that, the 1st if would always fail and the 2nd if would not be executed, but that doesn't matter because the 2nd if doesn't have a then . So before even starting the for loop, you would have gotten a diagnostic similar to:
-ksh: syntax error: `else' unexpected
and your script would terminate with a non-zero exit code.
Diagnostics and non-zero exit codes do not qualify as "no o/p from the script".
What is the name of your script?
What output do you get from the command:
ls -l name
where name is the name of your script?
Exactly what command did you use to invoke your script?
You've fallen into the same trap as in your other thread. Don Cragun pointed the syntax error out (amongst others). The logical one is making the -z test, inverting the desired behaviour.
Plus, on the second sight, you seem to want to evaluate some variables numerically, so -z or -n wouldn't be the correct test.
... so appericiate your help here