The following result is right!
Thanks!
I feel very puzzled, why I must need add '\' more, or add $(). Can you tell me ?
Back-ticks ( a.k.a. grave accents) is considered archaic nowadays. The newer enhanced command substitution $(commands) is recommended instead of `commands`
Need Help... I am getting a bad substitution error on my script on a Solaris Server. However the script has been proven to work on HPUX and Solaris servers...
#!/usr/bin/sh
#
# Set the location of the tzupdater.jar file
#
JAR=/tmp/tzupdater.jar # <<<<< UPDATE THIS LINE... (3 Replies)
I've created a series of arrays named as follows:
row1
row2
row3
.
.
.
row10
Each has 4 elements.
I'm trying to echo the array elements out in a for loop. Here's what I have:
for ((i=1;i<=10;i++))
do
for ((j=1;j<=4;j++))
do
eval out=${row`echo $i`}
echo -n $out (3 Replies)
hi,
i created a shell script having the following content:
#! /usr/bin/ksh
FROM="myemail@domain.com"
MAILTO="someemail@domain"
SUBJECT="TEST"
BODY="/export/home/adshocker/body.txt"
ATTACH="/export/home/adshocker/attach.prog"
echo $ATTACH
ATTACH_NAME="${ATTACH##*/}"
echo $ATTACH_NAME... (5 Replies)
Hello,
In bash I can use the following:
TMP=12345
MID=${TMP:1:1}
the expected result is: 2
but when using KSH I'm getting a ''bad substitution" error.
What is the correct syntaxin ksh?
Thanks (2 Replies)
#!/bin/bash
a1=( win 12,01,02,03,04 )
a2=( pre 04,05,06 )
a3=( msn 06,07,08,09 )
Given the above arrays, I want the script to return/echo the following in a loop;
win
12,01,02,03,04
pre
04,05,06,07
msn
06,07,08,09
But I can't get it to do as such.
I've tried; (2 Replies)
Hi All,
I'm building a new shell script but i'm facing a problem with one line which is giving "bad substitution" error. Please assist
script lines:
#!/bin/sh
printf "%s: " "Occurrence DATE (YYYYMMDD)"; read DATE
shortdate=${DATE#??}
o/p:
./test1: bad substitution
This command is... (2 Replies)
Hi,
I have a make file which I try to execute, but it failed when it arrived to the line:
for r in ${PIPESTATUS
}; do if (($r != 0)); then exit $r; fi;done;
With the Error:
""make:/bin/sh: Bad substitution""
Or the Error:
"make:${PIPESTATUS[...}: Bad substitution"
(Depend on the operating... (3 Replies)
Cant undestand :) why i have an error on line 2.it is working on my other boxes
#!/bin/bash
ret=$(echo Q | timeout 5 openssl s_client connect "${1`hostname`}:${2-443}" -ssl3 2> /dev/null)
if echo "${ret}" | grep -q 'Protocol.*SSLv3'; then
if echo "${ret}" | grep -q 'Cipher.*0000'; then
... (7 Replies)
i am trying to prepare a train and test dataset, for which i need to randomly split the data into corresponding folders (train,test)..
I began on a simple script, but seem to get som weird error messages, that i cannot make sense of?..
what am I doing wrong?
#!/bin/bash
RED='\033]
then... (13 Replies)
ShellCheck doesn't find any issues with this script.
#!/bin/bash
# color_meanings: explain meanings of colors used in bash ls
eval "$(echo "no:fi:di:ln:pi:so:do:bd:cd:or:mi:su:sg:tw:st:ex" | sed -e 's/:/=/g; s/\;/\n/g')"
{
IFS=:
for i in $LS_COLORS
do
... (18 Replies)
Discussion started by: Xubuntu56
18 Replies
LEARN ABOUT NETBSD
badsect
BADSECT(8) BSD System Manager's Manual BADSECT(8)NAME
badsect -- create files to contain bad sectors
SYNOPSIS
badsect bbdir sector ...
DESCRIPTION
badsect makes a file to contain a bad sector. Normally, bad sectors are made inaccessible by the standard formatter, which provides a for-
warding table for bad sectors to the driver; see bad144(8) for details. If a driver supports the bad blocking standard it is much preferable
to use that method to isolate bad blocks, since the bad block forwarding makes the pack appear perfect, and such packs can then be copied
with dd(1). The technique used by this program is also less general than bad block forwarding, as badsect can't make amends for bad blocks
in the i-list of file systems or in swap areas.
On some disks, adding a sector which is suddenly bad to the bad sector table currently requires the running of the standard DEC formatter.
Thus to deal with a newly bad block or on disks where the drivers do not support the bad-blocking standard badsect may be used to good
effect.
badsect is used on a quiet file system in the following way: First mount the file system, and change to its root directory. Make a directory
BAD there. Run badsect giving as argument the BAD directory followed by all the bad sectors you wish to add. The sector numbers must be
relative to the beginning of the file system, but this is not hard as the system reports relative sector numbers in its console error mes-
sages. Then change back to the root directory, unmount the file system and run fsck(8) on the file system. The bad sectors should show up
in two files or in the bad sector files and the free list. Have fsck(8) remove files containing the offending bad sectors, but do not have
it remove the BAD/nnnnn files. This will leave the bad sectors in only the BAD files.
badsect works by giving the specified sector numbers in a mknod(2) system call, creating an illegal file whose first block address is the
block containing bad sector and whose name is the bad sector number. When it is discovered by fsck(8) it will ask ``HOLD BAD BLOCK ?'' A
positive response will cause fsck(8) to convert the inode to a regular file containing the bad block.
DIAGNOSTICS
badsect refuses to attach a block that resides in a critical area or is out of range of the file system. A warning is issued if the block is
already in use.
SEE ALSO bad144(8), fsck(8)HISTORY
The badsect command appeared in 4.1BSD.
BUGS
If more than one of the sectors in a file system fragment are bad, you should specify only one of them to badsect, as the blocks in the bad
sector files actually cover all the sectors in a file system fragment.
BSD June 5, 1993 BSD