Hi,
I am a beginner in shell scripting. I have written the following script, which is supposed to process the while loop for each line in the sid_home.txt file. But I'm getting the 'end of file' unexpected for the last line. The file sid_home.txt gets generated as expected, but the script... (6 Replies)
So, I want to read line-by-line a text file with unknown number of files....
So:
a=1
b=1
while ; do
b=`sed -n '$ap' test`
a=`expr $a + 1`
$here do something with b etc
done
the problem is that sed does not seem to recognise the $a, even when trying
sed -n ' $a p'
So, I cannot read... (3 Replies)
So, the beginning of my script will cat & grep a file with the output directed to a new file. The data I have in this file needs to be parsed, read and evaluated.
Basically, I need to identify the latest date/time stamp and then calculate whether or not it is within 15 minutes of the current... (1 Reply)
Hi,
For my reuirement, I have to read a file from the 2nd line till the last line<EOF>.
Say,
I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines.
for i in `cat test.txt`
{
echo $i
}
While doing the above loop, I have read... (5 Replies)
hey all,
I have this code :
#!/bin/tcsh -f
set line=($<)
while($#line > 0)
echo $line
set line=($<)
end
the usage to run the script would be :
./file < file2
Is there a way to specify filename in the script itself instead of getting/reading file name from STDIN ? (1 Reply)
I need some help. I would like to read in a text file.
Take a variable such as ROW-D-01, compare it to what's in one line in the text file such as PROD/VM/ROW-D-01 and only input PROD/VM into a variable without the /ROW-D-01.
Is this possible? any help is appreciated. (2 Replies)
Hi,
i have a scenario were i should compare a few fields from each line then increment a variable based on that.
Example file
989878|8999|Y|0|Y|N|V
989878|8999|Y|0|N|N|V
989878|8999|Y|2344|Y|N|V
i have 3 conditions to check and increment a variable on every line
condition 1 if ( $3... (4 Replies)
Hi,
I want to read a live log file line by line and considering those line which start from time stamp;
Below code I am using, which read line but throws an exception when comparing line that does not contain error code
tail -F /logs/COMMON-ERROR.log | while read myline; do... (2 Replies)
Hi All,
i want to write a shell script read below file line by line and want to exclude the lines which contains empty value for MOUNTPOINT field.
i am using centos 7 Operating system.
want to read below file.
# cat /tmp/d5
NAME="/dev/sda" TYPE="disk" SIZE="60G" OWNER="root"... (4 Replies)
Discussion started by: balu1234
4 Replies
LEARN ABOUT OPENSOLARIS
fspec
fspec(4) File Formats fspec(4)NAME
fspec - format specification in text files
DESCRIPTION
It is sometimes convenient to maintain text files on the system with non-standard tabs, (tabs that are not set at every eighth column).
Such files must generally be converted to a standard format, frequently by replacing all tabs with the appropriate number of spaces, before
they can be processed by system commands. A format specification occurring in the first line of a text file specifies how tabs are to be
expanded in the remainder of the file.
A format specification consists of a sequence of parameters separated by blanks and surrounded by the brackets <: and :>. Each parameter
consists of a keyletter, possibly followed immediately by a value. The following parameters are recognized:
ttabs The t parameter specifies the tab settings for the file. The value of tabs must be one of the following:
o A list of column numbers separated by commas, indicating tabs set at the specified columns.
o A '-' followed immediately by an integer n, indicating tabs at intervals of n columns.
o A '-' followed by the name of a ``canned'' tab specification.
Standard tabs are specified by t-8, or equivalently, t1,9,17,25, etc. The canned tabs that are recognized are defined by the
tabs(1) command.
ssize The s parameter specifies a maximum line size. The value of size must be an integer. Size checking is performed after tabs have
been expanded, but before the margin is prepended.
mmargin The m parameter specifies a number of spaces to be prepended to each line. The value of margin must be an integer.
d The d parameter takes no value. Its presence indicates that the line containing the format specification is to be deleted from
the converted file.
e The e parameter takes no value. Its presence indicates that the current format is to prevail only until another format specifi-
cation is encountered in the file.
Default values, which are assumed for parameters not supplied, are t-8 and m0. If the s parameter is not specified, no size checking is
performed. If the first line of a file does not contain a format specification, the above defaults are assumed for the entire file. The
following is an example of a line containing a format specification:
* <:t5,10,15 s72:> *
If a format specification can be disguised as a comment, it is not necessary to code the d parameter.
SEE ALSO ed(1), newform(1), tabs(1)SunOS 5.11 3 Jul 1990 fspec(4)