sed works on Linux and Unix does not work

Shell Programming and Scripting
1

Hi,

I use this command in Linux but if I run the same command does not work in freebsd.

Follow the below command:

Linux works:

sed -e '1731a\' -e '####' squid.conf > squid2.conf ; sed -e '1731a\' -e 'acl TESTE_ip src 192.168.1.1/255.255.255.255' squid2.conf > squid.conf ; sed -e '1731a\' -e '########' squid.conf > squid2.conf ; sed -e '1731a\' -e '#####' squid2.conf > squid.conf

Freebsd displays the following error:

sed: 1: "acl TESTE_ip src 192.16 ...": command a expects \ followed by text

Could someone help me ?

Tks

2

Maybe you need to esacpe it with \, like this \/ and try.

3

thank you for reply.

I already tried to escape with \ the 'a' command the '\/'.

In this message, something to do with the command a(append) that I put together with the line.

sed: 1: "acl TESTE_ip src 192.16 ...": command a expects \ followed by text.

On Linux it works perfect but does not work in freebsd.

---------- Post updated at 07:30 PM ---------- Previous update was at 07:21 PM ----------

The a is not the line but the 'acl ...., i try escape '\acl but now other error display.

"\acl TESTE_ip src 192.1 ...": unterminated regular expression

4

Try double quotes around that entire string.

5

It would really help if you would clearly state what it is that you are trying to accomplish.

In any case, a guess: With regard to POSIX, GNU/Linux sed is a mess. GNU goes beyond compatible extensions and happily disregards basic command behavior (most notably, the N command). If you are trying to append text, use a newline after the backslash after the a command.

sed '1731a\
####' squid.conf'

If you are not attempting to add a line of "####" after the 1731st line, then please explain further.

Regards,
Alister

6

Thanks for the reply.

Exactly, but I would like to add multiple lines and this command line would I assign a variable as:

$exec = "sed '1731a\ ####' squid.conf'"

How will I assign a variable with line break?

The output in a text file "squid.conf" would be:

#####
acl TESTE_ip src 192.168.1.1/255.255.255.255
########

tksss

7

Absolutely no point. Anything that could possibly be special to the shell is already protected by strong quotes (single quotes).

Regards,
Alister

---------- Post updated at 09:22 PM ---------- Previous update was at 09:17 PM ----------

That command line will most likely just throw an error. You can't have whitespace around the "=" in an assignment.

Why don't you do yourself and us a favor and walk us through what it is that you are trying to accomplish. Step by step. Assume nothing. Break it down. Give us a few lines of input and the expected output. If you are trying to assign or extract something into a variable, give us context.

Regards,
Alister

8

thankss

The command it works. tks

sed -e '1a\
######' -e '1a\
> acl TESTE_ip src 192.168.1.1/255.255.255.255' squid.conf

All in a line without newline, is it possible? I will assign to a variable as:

tkssss

---------- Post updated at 08:51 PM ---------- Previous update was at 08:45 PM ----------

Tkss Alister

I would like now execute the command below in one line, without newline. if I remove a newline does not work as:

sed -e '1a\ ######' -e '1a\ acl TESTE_ip src 192.168.1.1/255.255.255.255' squid.conf

Tkss Alister

---------- Post updated at 08:56 PM ---------- Previous update was at 08:51 PM ----------

I will first test in the shell, after work I'll run the command via php. I put the entire command in double quote to run.

Tksss