Arrgh!!! Nevermind the aforesaid, I've just figured things out -- turns out I was wrong when I wrote that the lines 11 and 12 don't contain "begin" or "end". Both lines contain the word "sender".
The carriage returns were a total red herring. I was wrong when I thought that removing them had fixed things. It turns out that when I tested grep after removing them I had only grepped "begin" and not "begin|end".
So it's probably not a good idea to grep for "end" in this case without throwing away the email headers first. In my initial --only partially successful-- approach this also was unnecessary, because tail lends itself really well to clipping off the upper parts of the file without even looking at them (and uudecode ignores anything boyond the first uuencoded file, so the rest can be left as it).
which is entirely understandable, because the command line
Code:
sed -n "11,12p" /tmp/tmp.mail | uudecode
that's generated and passed to sh is bogus, and of course line 11 has no "begin" in it.
I still don't fully understand the nested sed stuff though. I'll try some more and/or come back with more questions. Also, if someone has a hint to get my initial approach with awk and tail to work, that would be really cool.
I want to run tail -f to continuously monitor a log file, outputing a specific field to a second log file. I can get the first portion to work with the following command:
tail -f log | awk '{if ($1 == "Rough") print $5}'
also:
awk '{if ($1 == "Rough") print $5}' <(tail -f log)
The... (2 Replies)
Hi
I have a file with lots of line feeds and form feeds (page break). Need to replace last occurrence of form feed (created by - echo "\f" ) in the file with line feed.
Please advise how can i achieve this.
TIA
Prvn (5 Replies)
Hello,
I am using a tail command to fetch the line before last in a log file.
the two last lines are as followed:
11-01-16 11:55:45.174 | CClientObject::InitTraceLevelInCache Starting
CClientObject::InitTraceLevelInCache End
I am doing a awk statement to gather only the numeric... (1 Reply)
I need some advice, I have live feed containing xml messages which means there is new messages every minute. I need a script that will run every 2 hours using the current time minus 2 hours ( which I able to do) However I have problem with the date formatting i.e.
One date is... (3 Replies)
Hello all,
I have data like
"1"|"My_name"|"My_Email"|"My_Last"|My_other"
"2"|"My_name"|"My_Email"|"My_Last"|My_other"
"3"|"My_name"|"My_Email"|"
"|My_other"
"1"|"My_name"|"My_Email"|"My_Last"|My_other"
Need output like
"1"|"My_name"|"My_Email"|"My_Last"|My_other"... (10 Replies)
Hi Forum.
I have the following script that splits a large fixed-width file into smaller multiple fixed-width files based on input segment type.
The main command in the script is:
awk -v search_col_pos=$search_col_pos -v search_str_len=$search_str_len -v segment_type="$segment_type"... (8 Replies)
Hello,
Can someone please share a Simple AWK command to append Carriage Return & Line Feed to the end of the file, If the Carriage Return & Line Feed does not exist !
Thanks (16 Replies)
Hello,
I would like to write script to tail a file for different environment
But the number of lines are keep changing
How can I write a script
For example:
env could : A, B or C
and log files could be a.log, b.log and c.log
with the number of lines can change
say sometimes it 100 last... (9 Replies)
Discussion started by: encrypt_decrypt
9 Replies
LEARN ABOUT LINUX
igawk
IGAWK(1) Utility Commands IGAWK(1)NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)
04-02-2008
Nevermind the aforesaid, I've just figured things out -- turns out I was wrong when I wrote that the lines 11 and 12 don't contain "begin" or "end". Both lines contain the word "sender". 
