After applying code tags to your snippets, I only see 3 or 4 columns/fields per line. It might help if you use some kind of field separator for every line so that you have a consistent number of fields per row. That would make parsing much easier, if this is possible.
Example:
I took a semicolon as delimeter. Where there is an empty column/field, you just have 2 ;; adjacent to each other, like in a csv file. With having just <n> of blanks between them, it is not easy to check which of the fields is empty and the wrong variable might be assigned.
Hi All,
I got a very strange problem, i have created a cron schedule that will run a programme once in every 12 mins, like
04,16,28,40,52 * * * * /myf/startProcessA 1> &-
Some time the cron skips the execution such as 04,28 instead of executing at 16 mins. it starts execution at 28, i... (6 Replies)
i want to give numbers to cut without worrying about the spaces;
echo "12 345 6 78 9" | cut -c 1-9
echo "123 456 789" | cut -c 1-9
echo "1 2 3 4 5 6 7 8 9" | cut -c 1-9
the output of these three must be allways;
123456789
is that posible? (6 Replies)
Hi
I have a shell script that looks for running processes in order to kill them. The script (ksh) gets the PID of these processes using the following:
PROCS=`ps -fu ${USERID} | egrep "MONITOR" | grep -v grep | cut -d" " -f4`
However, I spotted an issue where PID's of different lengths... (3 Replies)
I am trying to use wget to automate downloading of some mp3/wav files.
However, I can't get it to follow the link to the mp3s.
This is the line (it is not really the website):
wget -prl 1 http://website.com/alarmsHowever, if I right-click and copy the link on the webpage in firefox, then... (4 Replies)
Hi
I tried to extract 19 characters (default) enclosed with in tag from a file using cut command. If the characters comprises of double space, the cut command gives the output with a single spacing.
file 1
<name>Kumar Rajasekaran</name>
cut -c7-26 "file1"
the out put i received is ... (48 Replies)
This script is supposed to display a file ( crontab ), ask the user if they wish to update the file, then it goes through an update routine.
#!/bin/bash
FILE=/etc/crontab
tail -5 $FILE
echo -n "Does crontab need updating"
read HOURS
...routines ....etc...
Runs locally... (8 Replies)
Hi,
I am new to linux. I am using more command to view the contents of a file. If the file has many pages i am using f to move forward to the next page.
But when i press f it skips to two pages instead of one page. i checked the man more.
It shows the default is 1. Please share your... (1 Reply)
Hi
Can anyone what I am doing wrong while using cut command.
for f in *.log
do
logfilename=$f
Log "Log file Name: $logfilename"
logfile1=`basename $logfilename .log`
flength=${#logfile1}
Log "file length $flength"
from_length=$(($flength - 15))
Log "from... (2 Replies)
hay
i am trying to get JUST the PID from the ps command.
my command line is:
ps -ef | grep "mintty" | cut -d' ' -f2
but i get an empty line. i assume that the delimiter is not just one space character, but can't figure out what should i do in order to do that.
i know i can use awk or cut... (8 Replies)
I'm a complete beginner in UNIX (and not a computer science student either), just undergoing a tutoring course. Trying to replicate the instructions on my own I directed output of the ls listing command (lists all files of my home directory ) to My_dir.tsv file (see the screenshot) to make use of... (9 Replies)
Discussion started by: scrutinizerix
9 Replies
LEARN ABOUT MINIX
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1).
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)