If I correctly understand what you're trying to do (and since you aren't quoting the expansion of $NLINE in your echo statement, I'm not sure that I do), you might find that using dd is a lot easier than writing a COBOL program:
This will strip off trailing space characters from your input file (like your echo does), but it won't strip leading whitespace and won't convert sequences of spaces and tabs in the middle of your input lines to a single space (like your echo does).
Is there a command that sets a variable length?
I have a input of a variable length field but my output for that field needs to be set to 32 char.
Is there such a command?
I am on a sun box running ksh
Thanks (2 Replies)
Problem:
entry_name="joke:hello:yellow:blue:default"
print("%d %-12s\t%-10s\t%-5s\n", $i, $entry_name....);
I just want to print the output like this
index entry value ....
1 joke:hello:y 0 123 567
ellow:blue:d
... (1 Reply)
Hi,
I have a fixed length file where I need to verify the values of 3 different fields, where each field will have a different value.
How can I do that in a single step. (6 Replies)
I have a peculiar file with record format like given below. Each line is wrapped to next lines after certain number of characters. I want to concatenate all wrapped lines into 1.
Input:(wrapped after 10 columns)
This is li
ne1
This is li
ne2 and
this line
is too lo
ng
Shortline
... (8 Replies)
Hi,
I need to split a file based on last occurece of a string. PFB the explanation
I have a file in following format
aaaaaaaaaaaaaaaaaaaaaaaaaaa
bbbbbbbbbbbbbbbbbbbbbbbbbbb
ccccccccccccccccccccccccccc
ddddddddddddddddddddddddddd
3186rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr... (4 Replies)
I have a big file having 100 K lines.
I have to read each line and see at 356 character position whethere there is a word "W" in it. If it is their then don't delete the line otherwise delete it.
There are two lines as one Header and one trailer which should remain same.
Can somebody... (5 Replies)
I need to break the line after every 3rd semi colon(;) using Unix shell scripting
Input.txt
ABC;DEF;JHY;LKU;QWE;BVF;RGHY;
Output.txt
ABC;DEF;JHY;
LKU;QWE;BVF;
RGHY; (1 Reply)
Hi Team,
I have an issue to split the file which is having special chracter(German Char) using awk command.
I have a different length records in a file. I am separating the files based on the length using awk command.
The command is working fine if the record is not having any... (7 Replies)
Discussion started by: Anthuvan
7 Replies
LEARN ABOUT CENTOS
lksh
LKSH(1) BSD General Commands Manual LKSH(1)NAME
lksh -- Legacy Korn shell built on mksh
SYNOPSIS
lksh [-+abCefhiklmnprUuvXx] [-+o opt] [-c string | -s | file [args ...]]
DESCRIPTION
lksh is a command interpreter intended exclusively for running legacy shell scripts. It is built on mksh; refer to its manual page for
details on the scripting language. It is recommended to port scripts to mksh instead of relying on legacy or idiotic POSIX-mandated behav-
iour, since the MirBSD Korn Shell scripting language is much more consistent.
LEGACY MODE
lksh has the following differences from mksh:
o lksh is not suitable for use as /bin/sh.
o There is no explicit support for interactive use, nor any command line editing or history code. Hence, lksh is not suitable as a user's
login shell, either; use mksh instead.
o The KSH_VERSION string identifies lksh as ``LEGACY KSH'' instead of ``MIRBSD KSH''.
o lksh only offers the traditional ten file descriptors to scripts.
o lksh uses POSIX arithmetics, which has quite a few implications: The data type for arithmetics is the host ISO C long data type. Signed
integer wraparound is Undefined Behaviour. The sign of the result of a modulo operation with at least one negative operand is unspeci-
fied. Shift operations on negative numbers are unspecified. Division of the largest negative number by -1 is Undefined Behaviour. The
compiler is permitted to delete all data and crash the system if Undefined Behaviour occurs.
o The rotation arithmetic operators are not available.
o The shift arithmetic operators take all bits of the second operand into account; if they exceed permitted precision, the result is
unspecified.
o The GNU bash extension &> to redirect stdout and stderr in one go is not parsed.
o The mksh command line option -T is not available.
o Unless set -o posix is active, lksh always uses traditional mode for constructs like:
$ set -- $(getopt ab:c "$@")
$ echo $?
POSIX mandates this to show 0, but traditional mode passes through the errorlevel from the getopt(1) command.
o lksh, unlike AT&T UNIX ksh, does not keep file descriptors > 2 private.
SEE ALSO mksh(1)
https://www.mirbsd.org/mksh.htm
https://www.mirbsd.org/ksh-chan.htm
CAVEATS
lksh tries to make a cross between a legacy bourne/posix compatibl-ish shell and a legacy pdksh-alike but ``legacy'' is not exactly speci-
fied.
The set built-in command does not have all options one would expect from a full-blown mksh or pdksh.
Talk to the MirOS development team using the mailing list at <miros-mksh@mirbsd.org> or the #!/bin/mksh (or #ksh) IRC channel at
irc.freenode.net (Port 6697 SSL, 6667 unencrypted) if you need any further quirks or assistance, and consider migrating your legacy scripts
to work with mksh instead of requiring lksh.
MirBSD May 2, 2013 MirBSD