Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Csh/tcsh : Check the file existance and run the script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Csh/tcsh : Check the file existance and run the script
# 1  
Old 02-09-2014
Csh/tcsh : Check the file existance and run the script
Hi,
I've to wait until a file generated and once its generated, source another script in Linux terminal.

Please help me as this is very very urgent.

The code should be something like
Code:
if ( -e "/abc/xyz/a.txt )
   source aaa.csh
else
   sleep

This should be repeated till the if condition is met.

Rgds,
Kumar
Last edited by Neo; 02-09-2014 at 02:24 PM.. Reason: please use code tags for code, data,etc (it's a rule of the forum)
# 2  
Old 02-09-2014
That's all you have tried so far?

I think you should show more effort into trying different things.

That's your entire effort at this script (posting code with syntax errors - i.e. unmatched double quotes)?
# 3  
Old 02-09-2014
Dear Neo,
I tried the following piece of code.

Code:
#!/bin/csh -f
set ctrl = 1;
while ( $ctrl != 0 )
   if ( -e t ) then
      source aaa.csh
      set ctrl = 0;
   else
      echo "File Not Found : Sleeping"
      sleep 10
   endif
end


I feel its solving my purpose, just wanted to confirm with experts.
Last edited by kumar_eee; 02-09-2014 at 02:31 PM.. Reason: please use code tags (second request)
# 4  
Old 02-09-2014
OK. thanks for posting.. we have a lot of shell experts here to give you ideas (I'm more of a PHP guy these days)..... be patient and someone will reply to you.
# 5  
Old 02-09-2014
I am not csh programmer. I use ksh or bash for everything. But I'll take a stab at this. The only thing I see with the script is the superfluous but harmless semi-colons on those set statements. But I would code it differently to simplify the script...

Code:
#! /bin/csh -f

while ( ! -e somefile )
        echo file not found -- sleeping
        sleep 10
end
source file2
exit 0

and then a test run...

Code:
$ ./sleeper
file not found -- sleeping
file not found -- sleeping
file not found -- sleeping
hello
I am file2
$

In another window I typed "touch somefile" to get out of the loop.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

check for file existance and generate exit code amd move to another directory

Hi.. i have a file ABC_*.txt in source directory which will come evry 30 min and same file will be moved to working directory first time ...and will perform some operations then we archive ABC_*.txt ..this will run for 30 min to 45 min from 2nd time onwards requirement is ...i need to check... (3 Replies)
Discussion started by: dssyadav
3 Replies

2. Shell Programming and Scripting

How to run a file in a csh script?

Hi, I have a csh script. I want to set some variables and execute some command from a file in that script. abc.csh echo "primary script" b setenv XXX ddd set XX make abc I want to execute the commands of "b" file from abc.csh. How can i do that. Please view this link: How to use... (3 Replies)
Discussion started by: vdhingra123
3 Replies

3. Shell Programming and Scripting

how to check existance of multiple directories

Hi, I would like to check whether all the directories exists or not. I tried the below but it gives some error. below is the excerpt from my original script 24 #Check if the required directories are exists 25 dirExists() { 26 27 if 28 then 29 echo "required... (1 Reply)
Discussion started by: lookinginfo
1 Replies

4. Shell Programming and Scripting

Scripting to check the size of file and it's existance.

Hi, I am totaly new to create a script . Please help. I have file name retrived from SAP table into a internal table . Like :- /home/td_8d02_int_data_IPCL/ILLUSTRATIONS/CGM/l_pc_112138_01_0_01_00.cgm /home/td_8d02_int_data_IPC-L/ILLUSTRATIONS/CMP/l_pc_112138_01_0_01_00.cmp Objective... (1 Reply)
Discussion started by: amitkumar.b2
1 Replies

5. Shell Programming and Scripting

How to run a bash script in csh shell?

Hi how to execute a bash script in csh shell? Thanks (3 Replies)
Discussion started by: rubinovito
3 Replies

6. Shell Programming and Scripting

tcsh: not run script (if: Badly formed number)

Hello I have Linux Debian & tcsh shell. My mini script not run :(. Startup script displays a message: user@host:dir% ./test if: Badly formed number. script: #!/bin/tcsh -f #script check size files systems set x = `df -h /usr | tail -n1 | awk '{ print( $5 ); }'` set y = 60% if ($x... (5 Replies)
Discussion started by: moskovets
5 Replies

7. Shell Programming and Scripting

check the file existance

Hello, I have two files .. 1. inventory_i.txt 2. inventory_b.txt I want to check if these two files exists. If exists, then do the process, otherwise, quite... if ; then echo "exists" else echo " does not exists" fi The above logic is not working... It is always, displaying Does... (2 Replies)
Discussion started by: govindts
2 Replies

8. Shell Programming and Scripting

Differences between csh and tcsh

What are the differences between csh and tcsh shells ? In one of the shell scripts csh binary is a soft link to tcsh. (1 Reply)
Discussion started by: shafi2all
1 Replies

9. Shell Programming and Scripting

Unexpected end of file..with csh->tcsh

All; Thanks for reading. I'm having a heck of a time with this cshell script that fires off an hp temperature monitor and rotates logs. I keep getting '/opt/temperature/temp.sh: line 22: syntax error: unexpected end of file' when I try to 'sh /opt/temperature/temp.sh" it --script... (3 Replies)
Discussion started by: swjv
3 Replies

10. UNIX for Dummies Questions & Answers

diff between tcsh and csh -f

Hello Am very new to linux/unix, workin in it since 10 days only. I had started with bash and now I need to work in tcsh. I have changed shell for my user profile using 'chsh' I use gedit for script writing. Now in the first line if I write #!/bin/tcsh i get d msg /home/usr/.cshrc: No such... (2 Replies)
Discussion started by: mahendrakamath
2 Replies
Login or Register to Ask a Question