10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I found that
echo "aaa" | awk '{print ",\\";}'
works, and it will give "\".
but
ddd=`echo "aaa" | awk '{print ",\\";}'`; echo $ddd
will not work.
Could anyone tell me why? thank you. (8 Replies)
Discussion started by: wxuyec
8 Replies
2. Shell Programming and Scripting
Alright, so the goal of my script is to read text from standard input and store it into a file using the ex-editor:
so far i've got this, but it doesn't work.
#!/bin/s
read text
ex $1 >> HERE
text
HERE
I don't get any errors either, so i don't know what i'm doing wrong. (7 Replies)
Discussion started by: Bertieboy7
7 Replies
3. Shell Programming and Scripting
Hello Firends
I have a file that contains data within single quotes, which has meaning of its own. When I am trying to parse through the file for a different functionality I noticed that I was loosing the backslash when occurrences in the file look like ('\0'). I would want to retain the... (3 Replies)
Discussion started by: easwam
3 Replies
4. Shell Programming and Scripting
I have a shell script which has awk utlilty,also,in it. This a single script that many other jobs (informatica) using. Each job ll generate a log file. This script will read the particular log file and need to give output. The log file is act as input file for the script. So , a single script used... (2 Replies)
Discussion started by: Gopal_Engg
2 Replies
5. Shell Programming and Scripting
How do i read from kb using shell script but i need to read it from same line.
Script :-
echo "Please Enter Your Choice "
read CHOICE
But it goes to next line i need it to read it next to Choice and not new line. (4 Replies)
Discussion started by: dinjo_jo
4 Replies
6. Shell Programming and Scripting
Hi all,
I have wriiten an expect script that genearates a public private key pair through ssh-keygen and then copies that key to the authorized keys file of the remote system . The problem i am facing is when i get a password for the remote machine containg a trailing backslash , the send command... (4 Replies)
Discussion started by: pradeeptyagi23
4 Replies
7. Shell Programming and Scripting
I have a few .tex files generated with html2latex. They have some extra \\ that generate error with pdflatex, so I would like to get rid of them.
This
perl -p -i -e s/\\\\//g myfile.tex
with or without simple or double quote remove all of the backslashes, also the single ones needed by tex.
How... (2 Replies)
Discussion started by: ahsog
2 Replies
8. Shell Programming and Scripting
Hi,
Data file named parameter contains :
DB=y
Alter_def.sql
Create_abc.sql
SQL=y
database.sql
my_data.sql
To read this file I use
var_sql=$(awk -F= '$1 == "SQL" { print $2 }' parameter.txt)
if
then
sql_f_name=`grep "\.sql" parameter.txt`
echo $sql_f_name
fi (2 Replies)
Discussion started by: Dip
2 Replies
9. Shell Programming and Scripting
For reading a file through shell script I am using yhe code :
while read line
do
echo $line
done<data.txt
It reads all the line of that file data.txt.
Content of data.txt looks like:
code=y
sql=y
total no of sql files=4
a.sql
b.sql
c.sql
d.sql
cpp=n
c=y
total no of c files=1 (4 Replies)
Discussion started by: Dip
4 Replies
10. Shell Programming and Scripting
Dear all:
I want to write a script capable of reading specific rows and collumns of a table, into a variable.
Just imagine i have a file named table.dat which contains:
GENERAL INFORMATION
Col 1 Col2 Col3
1 1
2 2
3 3
4 4
What i want to do... (13 Replies)
Discussion started by: luiscarvalheiro
13 Replies
ppmquantall(1) General Commands Manual ppmquantall(1)
NAME
ppmquantall - run ppmquant on a bunch of files all at once, so they share a common colormap
SYNOPSIS
ppmquantall [-ext extension] ncolors ppmfile ...
DESCRIPTION
Takes a bunch of portable pixmap as input. Chooses ncolors colors to best represent all of the images, maps the existing colors to the new
ones, and overwrites the input files with the new quantized versions.
If you don't want to overwrite your input files, use the -ext option. The output files are then named the same as the input files, plus a
period and the extension text you specify.
Verbose explanation: Let's say you've got a dozen pixmaps that you want to display on the screen all at the same time. Your screen can
only display 256 different colors, but the pixmaps have a total of a thousand or so different colors. For a single pixmap you solve this
problem with ppmquant; this script solves it for multiple pixmaps. All it does is concatenate them together into one big pixmap, run
ppmquant on that, and then split it up into little pixmaps again.
(Note that another way to solve this problem is to pre-select a set of colors and then use ppmquant's -map option to separately quantize
each pixmap to that set.)
SEE ALSO
ppmquant(1), ppm(5)
BUGS
It's a csh script. Csh scripts are not portable to System V. Scripts in general are not portable to non-Unix environments.
AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
27 July 1990 ppmquantall(1)