02-16-2009
Trouble with tee command to capture script outputs
function GetInput
{
print -n "Input"
read input
export INPUT=$input
}
export COMMAND="GetInput"
$COMMAND
echo "$INPUT"
$COMMAND | tee -a Log.log
echo "$INPUT"
The first one without "tee" works fine. echo "$INPUT" displays the values I type in for input. The second one always shows $INPUT as empty string. Why? Is there any other way to execute a shell function and capture its log output and at the same time display its output on the stdout device too without impacting its actual behavior? As you can see here, although the fucntion exports the variable INPUT, it is not available when the function call returns to the calling script code.
Thanks for any help
Hoping to
===>
10 More Discussions You Might Find Interesting
1. Cybersecurity
Some background on what I am trying to accomplish - Accreditation/Certification for DoD (Unix/Linux) system: I am trying to improve the process for capturing key system information in preparation for performing a formal security review of a Unix or Linux system. This is in addition to the SRR... (1 Reply)
Discussion started by: SecureMe
1 Replies
2. UNIX and Linux Applications
cat work.txt
M|324324|32424|3431
M|324324|32424|3431
N|324324|32426|3432
N|324324|32424|3434
M|324324|32424|3435
cat work.txt | tee $( grep '^M' > m.txt ) | $( grep '^N' > n.txt )
cehpny00:/home01/sr38632 $ cat m.txt
M|324324|32424|3431
M|324324|32424|3431
M|324324|32424|3435
... (2 Replies)
Discussion started by: rsampathy
2 Replies
3. Shell Programming and Scripting
hi friends,
The code:
i=1
while
do
filename=`/usr/bin/ls -l| awk '{ print $9}'`
echo $filename>>summary.csv
#Gives the name of the file stored at column 9
count=`wc -l $filename | awk '{print $1}'`
echo $count>>summary.csv
#Gives just the count of lines of file "filename"
i=`expr... (1 Reply)
Discussion started by: rajsharma
1 Replies
4. Shell Programming and Scripting
script1:
#!/bin/ksh
more test.txt
script2: calling the script1
#!/bin/ksh
/tmp/script1.sh 2>&1 | tee tee.log
where test.txt contains ~1200 lines.
When I execute the script2 the more command does not print pagewise it goes to the end of the line, when I remove the tee command it... (4 Replies)
Discussion started by: prasad111
4 Replies
5. UNIX for Advanced & Expert Users
Hi,
Want to log the output of command & check the exit status to find whether it succeeded or failed.
> ls abc
ls: abc: No such file or directory
> echo $?
1
> ls abc 2>&1 | tee log
ls: abc: No such file or directory
> echo $?
0
Tee commands changes my exit status to be always... (7 Replies)
Discussion started by: vibhor_agarwali
7 Replies
6. Shell Programming and Scripting
hi guys, is there any way to capture the ip address of users who log-in to linux then capture the command executed together with the time and date?
example output
192.1.1.1 : ls -ltr Aug 6 16:38:40thanks in advance. (2 Replies)
Discussion started by: d3xt3r
2 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I'm sure this is real simple but in the looking I've done I haven't seen it addressed (or didn't realize it). I've started up a PuTTY connection to our UNIX box and started screen and script - no problems. Then I typed "tee teeKH18.txt" expecting it to start tee and dump all activity into... (2 Replies)
Discussion started by: Mike Welch
2 Replies
8. Shell Programming and Scripting
In the current directory , I have seven files .
But when I use the following command , it lists eight files ( 7 files + file_list.xtx)
ls -1 | tee file_list.xtx | while read line; do echo $line ; done
Does the tee command create the file_list.xtx file first and then executes the ls -1... (1 Reply)
Discussion started by: kumarjt
1 Replies
9. Shell Programming and Scripting
I have the following script as shown below where I cat a file and then also tee the output to a file as I have to email the execution of the process to users at the end of the script:
cat incoming.dat | tee -a execution.log
if
then
echo "Issue with incoming.dat file, file not... (5 Replies)
Discussion started by: calredd
5 Replies
10. Shell Programming and Scripting
Hello Experts,
Greeting to all of you.
I have a requirement, that we have a shell script status.sh
that check the status of server and server status shows as status.sh
Enterprise Server - Running
Admin Server - Shutdown
Requirement is like whenever the output shows shutdown it should... (2 Replies)
Discussion started by: aks_1902
2 Replies
SPLIT(1) User Commands SPLIT(1)
NAME
split - split a file into pieces
SYNOPSIS
split [OPTION]... [INPUT [PREFIX]]
DESCRIPTION
Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default size is 1000 lines, and default PREFIX is `x'. With no INPUT, or
when INPUT is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-a, --suffix-length=N
use suffixes of length N (default 2)
-b, --bytes=SIZE
put SIZE bytes per output file
-C, --line-bytes=SIZE
put at most SIZE bytes of lines per output file
-d, --numeric-suffixes
use numeric suffixes instead of alphabetic
-e, --elide-empty-files
do not generate empty output files with `-n'
--filter=COMMAND
write to shell COMMAND; file name is $FILE
-l, --lines=NUMBER
put NUMBER lines per output file
-n, --number=CHUNKS
generate CHUNKS output files. See below
-u, --unbuffered
immediately copy input to output with `-n r/...'
--verbose
print a diagnostic just before each output file is opened
--help display this help and exit
--version
output version information and exit
SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T,
P, E, Z, Y.
CHUNKS may be: N split into N files based on size of input K/N output Kth of N to stdout l/N split into N files without
splitting lines l/K/N output Kth of N to stdout without splitting lines r/N like `l' but use round robin distribution r/K/N like-
wise but only output Kth of N to stdout
AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman.
REPORTING BUGS
Report split bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report split translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for split is maintained as a Texinfo manual. If the info and split programs are properly installed at your site,
the command
info coreutils 'split invocation'
should give you access to the complete manual.
GNU coreutils 8.12.197-032bb September 2011 SPLIT(1)