Hello! I am writing a program that reads a bunch of arguments from the command line,then read information from a file(passed as one of the arguments) and do some computation. The problem I am facing is when a backslash(\) is present as one of the arguments, suppose $ myprog \ abc xyz,the backslash is completely ignored, for the previous example $1 is "abc" where as it should be "\", I have tried using double-quotes("$1") but it still stays the same. The problem is the same when I am reading from a file the backslash character is completely ignored as if it were a space or a tab.
How can I prevent htis and read "\" as it is? Your help will be greatly appreciated.
Use the -r option:
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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)
For reading a file through shell script I am using yhe code :
while read line
do
echo $line
done<data.txt
It reads all the line of that file data.txt.
Content of data.txt looks like:
code=y
sql=y
total no of sql files=4
a.sql
b.sql
c.sql
d.sql
cpp=n
c=y
total no of c files=1 (4 Replies)
Hi,
Data file named parameter contains :
DB=y
Alter_def.sql
Create_abc.sql
SQL=y
database.sql
my_data.sql
To read this file I use
var_sql=$(awk -F= '$1 == "SQL" { print $2 }' parameter.txt)
if
then
sql_f_name=`grep "\.sql" parameter.txt`
echo $sql_f_name
fi (2 Replies)
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)
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)
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)
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)
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)
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)
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)