12-09-2006
!@#$, I finally figured it out. A while loop prints it all funny like that, but a for loop lets me print it unpaced, on one line:
awk '{ for(i=1;i<NF+1;i++) printf $i }' answer
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I am looking for a way to redirect the result from a command into a variable.
This is the scenario.
Using the find command I will be getting multiple records/lines back.
Here is the command I am using:
find /”path”/ -name nohup.out -print
This now is giving me the paths and file... (1 Reply)
Discussion started by: hugow
1 Replies
2. UNIX for Dummies Questions & Answers
how make assign the output of the command (for example: grep "file" "string" ) in a variable ($name)?
i thing how put the result of the command (grep , cut, find ecc) in a variable..
IT's Possible ?? (1 Reply)
Discussion started by: ZINGARO
1 Replies
3. Shell Programming and Scripting
i want to redirect the grep output into the variable
but i am not able to get it
i tried
veri=`grep -i $1 "${logdir}"* | grep -i adding | grep -iv equation | tail -1 | cut -d ':' -f 1`
vari=$(grep -i $1 "${logdir}"* | grep -i adding | grep -iv equation | tail -1 | cut -d ':' -f 1)
BUT NOT... (1 Reply)
Discussion started by: mail2sant
1 Replies
4. Programming
Dear All:
I am trying to do something that (I thought) was relatively straightforward, but my code snippet does not seem to work.
Any suggestions?
Thank you
Sincerely yours
Misha Koshelev
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include... (0 Replies)
Discussion started by: misha680
0 Replies
5. Shell Programming and Scripting
I've been using tftp in one of my file
#!/bin/bash
filename1="config1h.txt"
filename2="config15.txt"
hostname="test.com"
tftp $hostname <</dev/null
get $filename1
get $filename2
quit
EOF
My output looks like this
# ./test3.sh
tftp> Received 1262 bytes in 0.0 seconds
tftp> Received... (2 Replies)
Discussion started by: LavanyaP
2 Replies
6. Shell Programming and Scripting
Hi,
I have a requirement to store oracle sqlplus output to some unix variable, count the records and then print the output on the screen.
Can you please point me to any sample program for reference purpose.
Thanks a lot for your time. (0 Replies)
Discussion started by: bhupinder08
0 Replies
7. Shell Programming and Scripting
Hi,
I search for a string "can be any" and print the fields $4,$6 in to variables.
$ cat input
<value ='can be any' string='many' version='123'/>
<value ='xyz' string='less' version='456'/>
$ cat tried_code
SRG=`awk -F\' '{ print $4 }' input`
VER=`awk -F\' '{ print $6 }' input`
... (4 Replies)
Discussion started by: greet_sed
4 Replies
8. Shell Programming and Scripting
I'm trying to redirect the output of crontab to a variable named "crontab_status" as below:
crontab_status=$(crontab -l)
executing the script is not redirecting to the variable. Please help! (6 Replies)
Discussion started by: mjavalkar
6 Replies
9. Shell Programming and Scripting
Hi,
How can I redirect the output of a following command to a variable.
ftp myservername
ftp> user
(username) guptaji
331 Password required for guptaji.
Password:
ftp> size /home/salil/abc.dat
ftp> a='size /home/salil/abc.dat'
?Invalid command
I want to redirect value of size to... (1 Reply)
Discussion started by: Salil Gupta
1 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I want to compare a value from test file and redirect the o/p value to the same file
input file
250 32000 32 128
Below is my code
awk '{ if ($1 < "300") print $1 > /tmp/test}' test
want to compare 250 < 300 then print 300 to the same place
below is the... (24 Replies)
Discussion started by: stew
24 Replies
LEARN ABOUT CENTOS
losetup
LOSETUP(8) System Administration LOSETUP(8)
NAME
losetup - set up and control loop devices
SYNOPSIS
Get info:
losetup loopdev
losetup -l [-a]
losetup -j file [-o offset]
Delete loop:
losetup -d loopdev...
Delete all used loop devices:
losetup -D
Print name of first unused loop device:
losetup -f
Setup loop device:
losetup [-o offset] [--sizelimit size]
[-p pfd] [-rP] {-f[--show]|loopdev} file
Resize loop device:
losetup -c loopdev
DESCRIPTION
losetup is used to associate loop devices with regular files or block devices, to detach loop devices and to query the status of a loop
device. If only the loopdev argument is given, the status of the corresponding loop device is shown.
Note that the old output format (e.g. losetup -a) with comma delimited strings is deprecated in favour of the --list output format (e.g.
losetup -a -l).
OPTIONS
+The size and offset arguments may be followed by the multiplicative +suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB,
ZiB and YiB +(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes +KB=1000, MB=1000*1000, and so on for GB, TB,
PB, EB, ZB and YB.
-a, --all
show status of all loop devices. Note that not all information are accessible for non-root users. See also --list. The old output
format (as printed without --list) is deprecated.
-c, --set-capacity loopdev
force loop driver to reread size of the file associated with the specified loop device
-d, --detach loopdev...
detach the file or device associated with the specified loop device(s)
-D, --detach-all
detach all associated loop devices
-f, --find
find the first unused loop device. If a file argument is present, use this device. Otherwise, print its name
-h, --help
print help
-j, --associated file
show status of all loop devices associated with given file
-l, --list
if a loop device or the -a option is specified, print default columns for either the specified loop device or all loop devices,
default is to print info about all devices.
-o, --offset offset
the data start is moved offset bytes into the specified file or device
-O, --output columns
specify which columns are to be printed for the --list output
--sizelimit size
the data end is set to no more than size bytes after the data start
-P, --partscan
force kernel to scan partition table on newly created loop device
-r, --read-only
setup read-only loop device
--show print device name if the -f option and a file argument are present.
-v, --verbose
verbose mode
ENCRYPTION
Cryptoloop is no longer supported in favor of dm-crypt. For more details see cryptsetup(8).
RETURN VALUE
losetup returns 0 on success, nonzero on failure. When losetup displays the status of a loop device, it returns 1 if the device is not con-
figured and 2 if an error occurred which prevented from determining the status of the device.
FILES
/dev/loop[0..N]
loop block devices
/dev/loop-cotrol
loop control device
EXAMPLE
The following commands can be used as an example of using the loop device.
# dd if=/dev/zero of=~/file.img bs=1MiB count=10
# losetup --find --show ~/file.img
/dev/loop0
# mkfs -t ext2 /dev/loop0
# mount /dev/loop0 /mnt
...
# umount /dev/loop0
# losetup --detach /dev/loop0
AUTHORS
Karel Zak <kzak@redhat.com>, based on original version from Theodore Ts'o <tytso@athena.mit.edu>
AVAILABILITY
The losetup command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2003 LOSETUP(8)