01-13-2016
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a file called get_columns.sh that I would like to replace $2 with $3. I have the following sed command written that works
sed s/'$3'/'$2'/g get_columns.sh > output.txt
However, when I try the command below, the file is empty.
sed s/'$3'/'$2'/g get_columns.sh > get_columns.sh
... (2 Replies)
Discussion started by: djschmitt
2 Replies
2. UNIX for Dummies Questions & Answers
Hi Guys,
Working on a script in the Vi editor that requires the fifth column of a particular line changed.
e.g.
Name:Address:email:A
where "A" needs to be changed to what the variable $access holds ($access currently has the words admin access in it)
when I use this command :
`sed... (3 Replies)
Discussion started by: rc1138
3 Replies
3. UNIX for Dummies Questions & Answers
Hello,
I have a shell script containing a command string in the following format:
command1 | command2 | cut -c9-16
The output from this is a record number (using characters 9-16 of the original output string) e.g. ORD-1234
I wish to save this value to a variable for use in later commands... (4 Replies)
Discussion started by: philjo
4 Replies
4. UNIX for Dummies Questions & Answers
HI!
I have a file that looks like this:
>ANKRD30_2kb
AAGTAACCAATGCAGGAAACCGAGAGGAGAGGTTTGGAAGGTGGTTTAGTGAGGTAATCCATCTTTTCT
AGTGATAAACTGGCACCCAGTCAATTTATTCATCAGAAGGGAATACATCAGCCTGGCGTGGTGGCTCGC
CCCCGACCCTGTCAGCGTCACCAGCAGCGCGGATCCATGGGCCAGAAGCCTCTAGGGCGCCTAAGTCAG
Number of residues in the... (9 Replies)
Discussion started by: vanesa1230
9 Replies
5. Shell Programming and Scripting
When I run this:
PDHDURL=`/usr/bin/curl --silent http://www.phdcomics.com/comics.php | /usr/bin/grep -o http://www.phdcomics.com/comics/archive/.*.gif | head -1`
echo -e "$PHDURL"
It is totally blank. However, when I just run it from the terminal:
/usr/bin/curl --silent... (2 Replies)
Discussion started by: killer54291
2 Replies
6. Shell Programming and Scripting
My script ssh's to another server and gathers information then process them. The problem is that the output of a command has an unwanted "blank lines".
...
ssh user1@${server1} /usr/bin/ls -l /tmp/file1 | awk '{print $5}' > ${DATAFILE}
...
$ cat ${DATAFILE}
123456789 (There's a blank... (7 Replies)
Discussion started by: pdtak
7 Replies
7. Shell Programming and Scripting
I am ssh to many servers to get some information... however sometimes the server is unreacheable and i am getting an error. I want to save that output to a file but I am not able to do so...
I want to be able to save output of bash into a file.. so when I run this command on a script
ssh... (5 Replies)
Discussion started by: eponcedeleonc
5 Replies
8. Shell Programming and Scripting
Hi all........
Plss do help me.......in a big trouble... :wall::wall::wall:
I have 3 directories named as :1. /home/shuchi/source
2./home/shuchi/destination
3./home/shuchi/filter
now the problem is /home/shuchi/source has say 2 files with extension .txt as given below :
A.txt
Code:
... (0 Replies)
Discussion started by: ektubbe
0 Replies
9. Shell Programming and Scripting
Hi all........
Plss do help me.......in a big trouble... :wall::wall::wall:
I have 3 directories named as :1. /home/shuchi/source
2./home/shuchi/destination
3./home/shuchi/filter
now the problem is /home/shuchi/source has say 2 files with extension .txt as given below :
A.txt
msisdn ... (5 Replies)
Discussion started by: ektubbe
5 Replies
10. Shell Programming and Scripting
Hi,
i need help with a file creation of an output program. I've got a program that with #find creates an output for each files in a directory.
If i give this command :
-o spec$(date -u +%Y%m%dt%H%M)
it creates just one file, overwriting all the others since it is the creation date .... (2 Replies)
Discussion started by: Board27
2 Replies
LEARN ABOUT DEBIAN
iswblank
ISWBLANK(3) Linux Programmer's Manual ISWBLANK(3)
NAME
iswblank - test for whitespace wide character
SYNOPSIS
#include <wctype.h>
int iswblank(wint_t wc);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
iswblank():
_XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
or cc -std=c99
DESCRIPTION
The iswblank() function is the wide-character equivalent of the isblank(3) function. It tests whether wc is a wide character belonging to
the wide-character class "blank".
The wide-character class "blank" is a subclass of the wide-character class "space".
Being a subclass of the wide-character class "space", the wide-character class "blank" is disjoint from the wide-character class "graph"
and therefore also disjoint from its subclasses "alnum", "alpha", "upper", "lower", "digit", "xdigit", "punct".
The wide-character class "blank" always contains at least the space character and the control character ' '.
RETURN VALUE
The iswblank() function returns nonzero if wc is a wide character belonging to the wide-character class "blank". Otherwise it returns
zero.
CONFORMING TO
POSIX.1-2001.
NOTES
The behavior of iswblank() depends on the LC_CTYPE category of the current locale.
SEE ALSO
isblank(3), iswctype(3)
COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU
2010-09-20 ISWBLANK(3)