10 More Discussions You Might Find Interesting
1. OS X (Apple)
Hi guys and gals...
MacBook Pro.
OSX 10.13.2, default bash terminal.
I have a flat file 1920 bytes in size of whitespaces only. I need to put every single whitespace character into a bash array cell.
Below are two methods that work, but both are seriously ugly.
The first one requires that I... (7 Replies)
Discussion started by: wisecracker
7 Replies
2. Shell Programming and Scripting
How to convert this:
F1-R1 F1-R2 F1-R3 into a flat file for bash?? Each record
F2-R1 F2-R2 F2-R3
F3-R1 F3-R2 F3-R3
F4-R1 F4-R2 F4-R3is on one line with all fields for that record, put into an output file. The output file should look like this when converted:
F1-R1,F2-R1,F3-R1,F4-R1... (6 Replies)
Discussion started by: bud1738
6 Replies
3. Shell Programming and Scripting
compare to flat files using awk .but in 4th field contains non ordered substring. how to do that.
file1.txt
john|0.0|4|**:25;JP:50;UY:25
file2.txt
andy|0.0|4|JP:50;**:25;UY:25 (4 Replies)
Discussion started by: veeruasu
4 Replies
4. Programming
I need some help to create a script that can do the following:
I have two flat files with one column that should link the two files' information into one record:
1st Flat File - 3 columns, multiple rows:
orderid, Jobnumber, Ordernumber
2nd Flat File - 2 columns, multiple rows:
... (4 Replies)
Discussion started by: Lavelle
4 Replies
5. Infrastructure Monitoring
Hello,
I am pretty new to shell scripts and I recently wrote one that seems to do what it should but I am exploring the possibility of improving its performance and would appreciate some help. Here is what it does - Its meant to monitor a bunch of systems (reads in IPs one at a time from a flat... (9 Replies)
Discussion started by: prafulnama
9 Replies
6. Shell Programming and Scripting
Hi Frnds,
I have a flat file with millions of records. .
Now I on this. (I prefer for AWK as its gives good performance.)
Old_file.txt
------------------
1 gopi ase ....
2 arun pl ...
3 jack sutha ..
4 peter pm ..
...
New_file.txt
---------------
4 peter pm ..
..
... (12 Replies)
Discussion started by: Gopal_Engg
12 Replies
7. Shell Programming and Scripting
Hi Gurus,
I searched the forum but didnt get much info.
I want to compare 2 files.
1)Newfile comes today with
2)Old file of previous day.
The files are same ,just the new files might have new records sometimes.
So I want to capture these new records in another file.
Can anyone help... (5 Replies)
Discussion started by: ganesh123
5 Replies
8. Shell Programming and Scripting
Hi all,
I want to create column names in a flat file and then load the data through some other application. For example, I have a file with emp.txt and I need column names as eno,ename,sal in the first line. The delimiter here is comma and record delimiter is end of line or unix new line. Could... (1 Reply)
Discussion started by: srivsn
1 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I have 7 big flat files, each contains 24 million records which have been sorted by the first field delimitered by Ctrl B (002).
I want to join them together side by side, eg.
File A:
1^Ba^Bb
2^Bx^By
....
File B:
1^Bc^Bd
2^Bm^Bn
....
After merged, it should look like :... (7 Replies)
Discussion started by: xli
7 Replies
10. Shell Programming and Scripting
I have a flat file like this
0001 THER ULT HEAD & NECK VES
0002 THER ULTRASOUND OF HEART
0003 THER ULT PERIPHERAL VES
0009 OTHER THERAPEUTIC ULTSND
0010 IMPLANT CHEMOTHERA AGENT
0011 INFUS DROTRECOGIN ALFA
0012 ADM INHAL NITRIC OXIDE
I need to conver this to a comma delimited flat file... (2 Replies)
Discussion started by: thumsup9
2 Replies
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