10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I have an ascii file in which few columns are having hex values which i need to convert into ascii. Kindly suggest me what command can be used in unix shell scripting?
Thanks in Advance (2 Replies)
Discussion started by: HemaV
2 Replies
2. Shell Programming and Scripting
Hi friends ,
I am confused with << EOF
EOF
Most of the cases I found
sqlplus $db_conn_str << EOF
some sql staments
EOF
another exapmle is
#!/bin/sh
echo -n 'what is the value? '
read value
sed 's/XXX/'$value'/' <<EOF
The value is XXX
EOF (1 Reply)
Discussion started by: imipsita.rath
1 Replies
3. Shell Programming and Scripting
Hi gurus,
I have a file in unix with ascii values. I need to convert all the ascii values in the file to ascii characters. File contains nearly 20000 records with ascii values. (10 Replies)
Discussion started by: sandeeppvk
10 Replies
4. Shell Programming and Scripting
Hey!
Can I write a routine that allows me to in a txt file check line by line until the end of file?
something like
until do
---some code---
done
maybe it is a stupid question but I never learned shell scripts and I need this :p
thanks in advance (1 Reply)
Discussion started by: ruben.rodrigues
1 Replies
5. Programming
How can I write EOF into a file?
I tryed to do as follows:
size=sizeof(EOF);
end_of_file=EOF;
write(fdMutexRichieste, &end_of_file, size);
But it does non work correctly,
becouse in the next cicle (using lseek(..., SEEK_END) of my code it seems to ignore my EOF and use the LAST... (5 Replies)
Discussion started by: DNAx86
5 Replies
6. Shell Programming and Scripting
I'm trying to connect to oracle with the following code in the script:
checksqlerror{
if
echo $1
exit
fi
}
$SQLPLUS username/password@schemaname
checksqlerror "failed to connect to oracle"
If I'm passing wrong schema name,instead of executing checksqlerror it stops and expects user... (2 Replies)
Discussion started by: BhawanaAggarwal
2 Replies
7. Shell Programming and Scripting
hi,
in a shell script i came accross the following bit of code
1.shift $(($OPTIND - 1))
2.if ; then
3. cat << EOF >&2
4.Usage: $0 lockfilename
5.EOF
6. exit 1
7.fi
I am not able to understand the meaning of lines(1,3,5).
Can any one of u tell me the purpose of above said lines.... (1 Reply)
Discussion started by: ravi raj kumar
1 Replies
8. UNIX for Dummies Questions & Answers
I have written this code:
code
echo 'Now choose the file or files you want to merge your input with: \c'
read filenames
filelist=""
for file in $filenames; do
filelist="$filelist $file"
done
echo "Now that you've chosen these files ($filelist), please start typing: "
until ; do
paste -... (2 Replies)
Discussion started by: fiol73
2 Replies
9. UNIX for Dummies Questions & Answers
hello all,
how end of a file is detected in UNIX system?
does it make use of any special symbols to identify the EOF? :(
thank you all (5 Replies)
Discussion started by: compbug
5 Replies
10. Shell Programming and Scripting
Hi,
I'd like to access a windows directory from aix with samba client.
To allow direct access (not interactive), i'm using EOF like:
smbclient \\\\winserver\\windir 'passwd' -U usersmb << EOF
cd subwindir
put myfile
EOF
The access is correct but does somebody know how to trap errors... (1 Reply)
Discussion started by: jo_aze
1 Replies
CTYPE(3) Library Functions Manual CTYPE(3)
NAME
isalpha, isupper, islower, isdigit, isxdigit, isalnum, isspace, ispunct, isprint, isgraph, iscntrl, isascii, toupper, tolower, toascii -
character classification macros
SYNOPSIS
#include <ctype.h>
isalpha(c)
. . .
DESCRIPTION
These macros classify ASCII-coded integer values by table lookup. Each is a predicate returning nonzero for true, zero for false. Isascii
and toascii are defined on all integer values; the rest are defined only where isascii is true and on the single non-ASCII value EOF (see
stdio(3S)).
isalpha c is a letter
isupper c is an upper case letter
islower c is a lower case letter
isdigit c is a digit
isxdigit c is a hex digit
isalnum c is an alphanumeric character
isspace c is a space, tab, carriage return, newline, vertical tab, or formfeed
ispunct c is a punctuation character (neither control nor alphanumeric)
isprint c is a printing character, code 040(8) (space) through 0176 (tilde)
isgraph c is a printing character, similar to isprint except false for space.
iscntrl c is a delete character(0177) or ordinary control character (less than 040).
isascii c is an ASCII character, code less than 0200
tolower c is converted to lower case. Return value is undefined if not isupper(c).
toupper c is converted to upper case. Return value is undefined if not islower(c).
toascii c is converted to be a valid ascii character.
SEE ALSO
ascii(7)
7th Edition May 12, 1986 CTYPE(3)