If the data you're working with uses windows style line-endings, \r\n, the \n is lost during shell parsing (field splitting, and in the terminating case command substitution as well) but the \r would remain. A terminating \r in the values stored in $a, $b, $c, or $d would yield the results you're seeing.
To illustrate:
It looks like 'Carriage -> ' was never printed, but it was (the ">" after 'Return' is from the arrow that follows 'Carriage'). It's just seems that way due to the how the terminal interprets the \r -- the cursor returns to column 1 of the same line and prior output on that line is overwritten with new output until the next newline moves the cursor to the next line. While some text may be clobbered on the screen, if the output were redirected to a file, inspecting it with a tool such as od(1) would show that all the data is indeed there. The \r is only a problem with regard to displaying/printing on a terminal (and possibly some printers).
To confirm, you could pipe the output of the script into od -c and look for carriage returns, \r. You could also try piping the output through tr -d \\r to see if that fixes the problem.
Hi all,
Have two SCO 5.0.5 systems and one Slackware(joy?) system.
I've been asked to backup all three systems onto a newly acquired AIT Tape drive that we've installed on one of the SCO boxes.
Using the existing cpio backup script on the one SCO works a treat and is really fast (which is... (2 Replies)
All,
Have an AMD-K6/2 PC, 20G.Hd along with RH7.2.
Wanting to know what I should do in terms of setup (workstation/server) and then what I can do with it?
I'd like to learn a DBMS and SQL - can I do this using RedHat?
Any suggestions with how I can use/ what I can do with this appreciated. (3 Replies)
The current backup procedure we using a tar command in linux.
The files are stored in one partition in different folders. The docs stores in day wise folders like ex: /usr/data/xyz/20050129, /usr/data/xyz/20050130 .............etc
We using tar & gzip command to take backup everyday. The backup... (3 Replies)
We run WebSphere and by default it wants to install everything under /usr. While I can understand the default (everyone has a /usr) I would like to move this over to a dedicated volume group called apps and then setup my lv's and fs's here. Our WebSphere Admin doesn't like this because apparently... (1 Reply)
Hi all,
I have worked on HP UNIX and now i have moved to SunSolaris which i never used to work.
I am more on programming side like shell and perl scripting.
So i want to know from you experts that i need to take care or changes which i code in sun solaris in compared to HP unix.
Suggestions... (1 Reply)
Hi,
I have written a script which calls a process which ends up in a reboot of the system. At the end of the reboot it prompts for login & i need to provide the login details. am not able to figure out hw to do this.
Doubt: will echoing login details after calling the process work?
for ex:... (1 Reply)
A few weeks ago at the recommendation of people I trust, I bought and started reading Kernighan and Ritchie's (K&R) C Programming Language. For one thing, it's damn thin compared to the O'Reilly Practical C I just finished last month. It covers generally the same stuff but in a much more... (9 Replies)
Hello there....i am a final year comp science student.......i am thinking of doing my project on unix platform......which one do u suggest?thanx in advance... (3 Replies)
I've been busy and fell behind on Sun/Oracle. Forgive me if too basic. I welcome brief, cryptic, or advanced replies. I also welcome noobie information since I may have no clue what's up at the moment.
Problem statement:
I inherited a computer to set up. I would rather not figure out 8 months... (1 Reply)
i=1
out=""
j=`expr 2 * $1`
while
do
out="$out"#""
echo $out
((i=i+1))
done
while
do
print ${out%?}
((i=i+1))
done
This script is throwing an error:
gurnish:/home/fnb/gurnish/saurabh/scripts> while1 3
expr: 0402-050 Syntax error.
# (6 Replies)
Discussion started by: targetshell
6 Replies
LEARN ABOUT MINIX
zmore
ZMORE(1) General Commands Manual ZMORE(1)NAME
zmore - file perusal filter for crt viewing of compressed text
SYNOPSIS
zmore [ name ... ]
DESCRIPTION
Zmore is a filter which allows examination of compressed or plain text files one screenful at a time on a soft-copy terminal. zmore works
on files compressed with compress, pack or gzip, and also on uncompressed files. If a file does not exist, zmore looks for a file of the
same name with the addition of a .gz, .z or .Z suffix.
Zmore normally pauses after each screenful, printing --More-- at the bottom of the screen. If the user then types a carriage return, one
more line is displayed. If the user hits a space, another screenful is displayed. Other possibilities are enumerated later.
Zmore looks in the file /etc/termcap to determine terminal characteristics, and to determine the default window size. On a terminal capa-
ble of displaying 24 lines, the default window size is 22 lines. To use a pager other than the default more, set environment variable
PAGER to the name of the desired program, such as less.
Other sequences which may be typed when zmore pauses, and their effects, are as follows (i is an optional integer argument, defaulting to
1) :
i<space>
display i more lines, (or another screenful if no argument is given)
^D display 11 more lines (a ``scroll''). If i is given, then the scroll size is set to i.
d same as ^D (control-D)
iz same as typing a space except that i, if present, becomes the new window size.
is skip i lines and print a screenful of lines
if skip i screenfuls and print a screenful of lines
q or Q Quit.
= Display the current line number.
i/expr search for the i-th occurrence of the regular expression expr. The user's erase and kill characters may be used to edit the regular
expression. Erasing back past the first column cancels the search command.
in search for the i-th occurrence of the last regular expression entered.
!command
invoke a shell with command. The character `!' in "command" is replaced with the previous shell command. The sequence "!" is
replaced by "!".
:q or :Q
Quit (same as q or Q).
. (dot) repeat the previous command.
The commands take effect immediately, i.e., it is not necessary to type a carriage return. Up to the time when the command character
itself is given, the user may hit the line kill character to cancel the numerical argument being formed. In addition, the user may hit the
erase character to redisplay the --More-- message.
At any time when output is being sent to the terminal, the user can hit the quit key (normally control-). Zmore will stop sending output,
and will display the usual --More-- prompt. The user may then enter one of the above commands in the normal manner. Unfortunately, some
output is lost when this is done, due to the fact that any characters waiting in the terminal's output queue are flushed when the quit sig-
nal occurs.
The terminal is set to noecho mode by this program so that the output can be continuous. What you type will thus not show on your termi-
nal, except for the / and ! commands.
If the standard output is not a teletype, then zmore acts just like zcat, except that a header is printed before each file if there is more
than one file.
FILES
/etc/termcap
Terminal data base
SEE ALSO more(1), gzip(1), zdiff(1), zgrep(1), znew(1), zforce(1), gzexe(1)ZMORE(1)