10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
OS version: RHEL 7.4
Shell : bash
I would like to capture command outputs using tee like # yum upgrade | tee yumupgradeLog
But, if I use tee command, I cannot respond to prompts like Is this ok : during command execution as shown below.
Is there a way I could use tee and still be able to... (4 Replies)
Discussion started by: kraljic
4 Replies
2. UNIX for Dummies Questions & Answers
Team,
we use below command to store the contents in a logfile.
cat a.txt > a.log
a.txt content is
123
345
Is there any options available to store the command used also?
for eg a.log may show as
cat a.txt
123
345 (5 Replies)
Discussion started by: sid2013
5 Replies
3. Shell Programming and Scripting
Hi All,
Hoping you can help as im in desperate need... I'm very new to unix scripting so apoligies,
I have setup an expect script in order to log into a node on our network, This will provide an output as per the below
*********** information:
*************: n/a
TEST IP : n/a
... (18 Replies)
Discussion started by: mutley2202
18 Replies
4. Shell Programming and Scripting
Hi
Is there a way that I can capture a shell script (both output and input) to a log file where I can analyze it?
Thanks (6 Replies)
Discussion started by: nimo
6 Replies
5. Shell Programming and Scripting
Hi,
When I run the following command in terminal it works. The string TEST is appended to a file silently.
echo TEST | tee -a file.txt &>/dev/null
However, when I paste this same line to a file, say shell1.sh, and use bourne shell .
I run this file in terminal, ./shell1.sh.
However I... (1 Reply)
Discussion started by: shahanali
1 Replies
6. UNIX for Dummies Questions & Answers
ok,
suppose i have a file called f1
$ cat f1
this is file1
the quick brown fox jumped over the lazy dog
this is file1
who let the dogs out
this is unix
this is file1
and i have another file f2
$ cat f2
this is file2
the task is to eliminate the repeated lines in f1 and add the... (11 Replies)
Discussion started by: c_d
11 Replies
7. Shell Programming and Scripting
Hi,
I would like to process, filter the same ASCII asynchronous live data stream in more than one pipe pipeline.
So the one pipeline should filter out some records using grep key word
and more than one pipes pipelines
each should grep for another key words, each set seperately for each... (5 Replies)
Discussion started by: jack2
5 Replies
8. Shell Programming and Scripting
Hi,
Is there anyway to duplicate output without using tee?
Let me explain the problem.
We are use ssh to login to remote server and save output to a file using tee commands for auditing purposes. When we use vi editor in ssh session, letters get garbled and cant really use vi. Without tee it... (7 Replies)
Discussion started by: eagles1
7 Replies
9. Shell Programming and Scripting
I have a program that can be run in terminal, when its run it either returns SSH OK or CRITICAL, how do i use the output in my script?
good
./check_sh myserver
SSH OK
bad
./check_sh myserver
CRITICAL
I want to store it in a variable btw, SSH OK will give the variable $SSH=1 and if its... (1 Reply)
Discussion started by: aspect_p
1 Replies
10. Shell Programming and Scripting
Hi,
Can anyone please tell me what these lines do?
ls >& outfile
ls outfile 2>&1
Thanks. (1 Reply)
Discussion started by: trivektor
1 Replies
log(8) System Manager's Manual log(8)
NAME
log - Records input and output from a program
SYNOPSIS
/usr/sbin/log <logfile> <command>
OPERANDS
The file in which to record the interaction being logged. The command to execute.
DESCRIPTION
The log program runs <command> and logs the input to and output from <command> to the <logfile> file. Input and output are logged until
<command> exits, the log program exits, and the exit status of <command> is returned.
The log program is used by the system installation procedure and the it(8) command to create the /var/adm/smlogs/install.log and
/var/adm/smlogs/it.log installation log files.
RESTRICTIONS
Because the log program is used in the installation standalone environment, program size was the greatest concern in its implementation.
The log program does not search for the PATH variable to locate <command> and error messages are terse.
The log program causes <command> to take standard input from and write standard output and standard error to UNIX pipes. Some commands
will not be able to operate in this environment; therefore, it is suggested that you use the script(1) command instead. UNIX shells will
not issue prompts when run from log unless the shell is started with an explicit interactive switch (-i for most shells). For example, log
foo.tmp /sbin/sh -i
In the previous example, foo.tmp is the name of <logfile>.
The log program intercepts end-of-file (usually Ctrl/d). Therefore programs which normally receive end-of-file as an exit command must
exit by some other means.
ERRORS
Log open error
Explanation:
The log program was unable to open <logfile>. Verify that the directory exists and that ownerships and permissions are set correctly.
Exec Error
Explanation:
The log program was unable to execute <command>. Verify that you specified a full pathname for <command> and that <command> is an exe-
cutable file.
Fork Error
Explanation:
The log program was unable to create one of the processes it requires to log data.
SEE ALSO
Commands: it(8), script(1)
log(8)