CODEWITHSUNDEEP
bashshell
user1595858
user1595858

Reputation: 3878

how to get the command and output logged in shell?

We need to log the command and its output. For example if I run the following command. I need to log it into a text file. 

cat script.sh
find / -name sshd_config -print
/etc/ssh/sshd_config

cat log.out --should be as below

<server_name>$ find / -name sshd_config -print
/etc/ssh/sshd_config

If I use set-x in the script, I can log the command but it gives too much information. Is there any alternate way to use in the scripts?

Upvotes: 0

Views: 133

Answers (2)

glenn jackman
glenn jackman

Reputation: 246764

I was curious and followed up: here's an expect script that makes a shell script look interactive:

#!/usr/bin/env expect

set script [lindex $argv 0]
if { ! [file readable $script]} {
    error "cannot read $script"
}

set fid [open $script r]
set lines [split [read -nonewline $fid] \n]
close $fid

set shebang [lindex $lines 0]
if {[string match {#!*} $shebang]} {
    spawn -noecho {*}[string range $shebang 2 end]
} else {
    spawn -noecho $env(SHELL)
}

foreach line $lines { 
    # skip blank lines
    if {[string trim $line] eq ""} continue
    # skip comments
    if {[string match {#*} [string trim $line]]} continue
    send -- "$line\r" 
}

# send Ctrl-D to end shell session
send -- \x04
expect eof

Save as something like interactivize, then:

$ cat test.sh
date
getent passwd $USER
echo Hello World
$ interactivize test.sh
date
getent passwd $USER
echo Hello World
[myprompt]$ date
Thu Apr  9 18:29:31 EDT 2015
[myprompt]$ getent passwd $USER
jackman:x:1001:1001:Glenn Jackman:/home/jackman:/usr/local/bin/fish
[myprompt]$ echo Hello World
Hello World
[myprompt]$ exit
exit

Upvotes: 1

Niels van Reijmersdal
Niels van Reijmersdal

Reputation: 2035

If you need to it for security audits I would have a look at GateOne.

It supports full recording of commands and output, for a short demo see: https://youtu.be/gnVohdlZXVY?t=3m13s

Upvotes: 0

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