Hi ,
I am facing a problem .. which looks simple... but took 2 days of mine.. even now it is not solved completely..
I have one variable..., want to know whether that variable contains number... canbe +ve or -ve ...
Values
+35 --- number
-43 --- number
45A -- non number... (12 Replies)
Hi,
I have a log file, where i am required to identify the line number, where a particular string/line appears in the log file.
And then copy 200 lines above that line number to a new file.
Can someone provide pointers on how to write this script or what command to be used ?
Any... (2 Replies)
Hey I'm new in linux,
I'm looking for a code to check whether the parameter is a number or a string.
I have already tried this code:
eerste=$(echo $1 | grep "^*$">aux)
if
But it doesn't work.:confused:
Thanks (2 Replies)
This is what I have so far
grep -lir "some text" *
I need to check all files on the system for this text, if the text is found I need to change the file permissions so only ROOT has read and write access.
How can this be done? (3 Replies)
Hi,
I am having a problem in converting a string to number so I can preform arithmetic operations.
timeTot=0
timeTmp=$(cat idsOutput | grep 'Run time' | cut -c 36-39)
timeTot=$ #This is line 28
echo "total RunTime=" $timeTot
this is the error msg:
./ids2.sh: line 28: 0+1.35: syntax... (8 Replies)
hello,
i have a variable which should have following content :
var="value1"
or
var="value2"
or
var="value2:*" # example: value2:22
how can i check :
- if the content is ok (value1 / value2* )
- the two options of "value2"
when content is example "value2:22" , i want to split... (3 Replies)
Hi, guys.
In Linux Shell script, how can I check a string whether meets some conditions.
e.g.:
If a string str must start with a underscore or a alphabet, and it must contains at least one lowercase, one uppercase, one numeric and one punctuation, and its length must be more than 8 characters... (2 Replies)
I have below code inside my awk script
if ( $0 ~ /SVC IN:/ )
{
svc_in=substr( $0,23 , 3);
if (msg_start == 1 && msg_end == 0)
{
msg_arr=$0;
}
}
else if ( $0 ~ /^SVC OUT:/ )
{
svc_out=substr( $0, 9, 3);
if (msg_start == 1 && msg_end == 0)
... (6 Replies)
Discussion started by: bhagya123
6 Replies
LEARN ABOUT OPENSOLARIS
echo
echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)NAME
echo - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.
echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
ronment variables.
For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded slash-characters into space-characters
o pipe that output through wc -w for a count of the names in your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's
echo() also understands a as the audible bell character; however, these commands do not have an -n option.
OPTIONS -n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases.
SunOS 5.11 3 Aug 1994 echo(1B)