Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

exec comand

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers exec comand
# 1  
Old 09-08-2005
exec comand
hi,

i have written a small script in which i use exec command and redriect output to a file..after sometime i want to switch it off and redirect the output to screen..how to do it

exec >> /tmp/out.txt 2>&1

//set of statements

then i want to switch of these exec as the rest should get displayed in screen and not int out.txt file
# 2  
Old 09-08-2005
Try this:
exec 4>&1 >> script.out 5>&2 2>&1
exec 1>&4 4>&- 2>&5 5>&-
# 3  
Old 09-09-2005
is it possible for u to tell me wat this implies
# 4  
Old 09-09-2005
The first line sends fd 1 and fd 2 into your file. After that first line, put the lines that need to output to your file. Then use my second line which restores fd 1 and fd 2 to what they were originally.

The first line saves fd 1 and 2 by copying then to fd 4 and 5. The second line copies them back. The construct "4>&-" closes fd 4.
# 5  
Old 09-09-2005
Still bounced, Smilie

Very kind of you if you can give me a link. Smilie
# 6  
Old 09-09-2005
Go through chapter 24 and 25 of this link.

Check out this article one as well.

Explains the use of fd's extensively.

vino
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with shell 'select' comand

Oracle Linux5.6 64 bit Need some help with use of ‘select' command. Given the following: PS3='Select recovery SCN: ' select rcvscn in ` sqlplus -s rman/fubar@rmcat <<EOF1 select db_name, CHECKPOINT_CHANGE# SCN, to_char(CHECKPOINT_TIME,'dd-Mon-yyyy... (2 Replies)
Discussion started by: edstevens
2 Replies

2. Shell Programming and Scripting

UNIX comand

Team, I need unix command to grep directory part from the string for example I have a texts something like /apps/opt/data/current/spool/test.dbf /apps/opt/archive/../../test.dbf I need only directory part from that string like my out put will /apps/opt/data/current/spool/... (1 Reply)
Discussion started by: asappidi
1 Replies

3. Shell Programming and Scripting

Script Variables Inquiry, Values Okay in Standalone Exec, No-Show in Cron Exec

I have the following bash script lines in a file named test.sh. #!/bin/bash # # Write Date to cron.log # echo "Begin SSI Load $(date +%d%b%y_%T)" # # Get the latest rates file for processing. # d=$(ls -tr /rms/data/ssi | grep -v "processed" | tail -n 1) filename=$d export filename... (3 Replies)
Discussion started by: ginowms
3 Replies

4. AIX

smit see comand performed ??

i in smit , press F6 , smit fs , Change / Show Characteristics of an Enhanced Journaled File System then F6 to see the comand , how can i see the command performed ?? x() { │ │ LIST= ... (5 Replies)
Discussion started by: prpkrk
5 Replies

5. Solaris

Using dd comand

Hello peolple i have to check a tape with de dd comand and redirect the exit dd if=/dev/rmt/0cn ibs=1024k of=/dev/null i need that the exit from that commando go to a log if a do this dd if=/dev/rmt/0cn ibs=1024k of=/dev/null > x.log don`t send me nothing to the log only in the screen. I need... (1 Reply)
Discussion started by: enkei17
1 Replies

6. HP-UX

collect comand usage

I would like to set up monitoring of CPU, memory and disk utilization as a cron job daily with this command, on a Tru64 machine. I presume that it can be done similar to syslog.dated procedure, so that every day i get a file in, for example, /var/adm/collect.dated/... Specifically, i would like... (0 Replies)
Discussion started by: veccinho
0 Replies

7. Solaris

comand df -k

I need to know the available space in my unix. when making a df -k it shows me the following thing: /dev/vx/dsk/emc2/vol06 136764867 121542767 1545614 99% /emc06 would need them to explain to me well the command. since under the column avail the resulting value is... (2 Replies)
Discussion started by: roviedo
2 Replies

8. Shell Programming and Scripting

Testing a comand in the script

Hi everyone , i am new to shell scripting and am having some problem to test if this line has been executed well and display a pass message on the screen or fail if not sqlplus XXTEST/$2 <<END > $XXTEST_TOP/log/$0.log @$XXTEST_TOP/admin/sql/XXTEST_SPE1_XX_QUOTE_DETAILS_TBL.sql XXTEST$2... (2 Replies)
Discussion started by: Lutchumaya
2 Replies

9. Shell Programming and Scripting

how to use sleep comand for milliseconds?

how to use sleep comand for milliseconds? (3 Replies)
Discussion started by: brkavi_in
3 Replies

10. UNIX for Dummies Questions & Answers

mount comand

Dear experts: I am installing software on Unix via telnet using CD on my NT workstation. What kind of NFS & mount comands I should run in the beginning ? (what exactly should be <drive for cdrom> and <mount ditectory> in the mount comand? Thanks in advance, etc.. (6 Replies)
Discussion started by: lostam
6 Replies
Login or Register to Ask a Question