08-19-2010
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi everyone. I realise this is probably a bit of a noob question, but I'm actually a C# developer working on a legacy system, and can't remember much unix.
I want to read from a pipe-delimeted file like formatted thusly:
idno|PRODUCT|Name|street town postcode|etc|etc|etc|etc... (4 Replies)
Discussion started by: Darkness Fish
4 Replies
2. Shell Programming and Scripting
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)
Discussion started by: sagarparadkar
6 Replies
3. Shell Programming and Scripting
So i have a file which contains paths to JPG images separated by a space.
I have to separate them each path to another file. So, I have to search all strings that start from /home/ and ends with .jpg or .png
Then write each one to another file...
Can you please help me on doing this???:cool: (11 Replies)
Discussion started by: hakermania
11 Replies
4. Shell Programming and Scripting
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)
Discussion started by: machomaddy
5 Replies
5. Shell Programming and Scripting
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)
Discussion started by: xChristopher
2 Replies
6. Shell Programming and Scripting
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)
Discussion started by: selvankj
4 Replies
7. Shell Programming and Scripting
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)
Discussion started by: ketanraut
2 Replies
8. Shell Programming and Scripting
Hi All,
Am trying to write wrapper shell/bash script on a utility tool for which i need to pass 2 files as arugment to execute utility tool.
Wraper script am trying is to do with above metion 2 files.
utility tool accepts :
a. userinfo file : which contains username
b. item file : which... (2 Replies)
Discussion started by: Optimus81
2 Replies
9. UNIX for Beginners Questions & Answers
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
fspec(4) Kernel Interfaces Manual fspec(4)
NAME
fspec - format specification in text files
DESCRIPTION
It is sometimes convenient to maintain text files on the HP-UX system with non-standard tabs, (meaning tabs that are not set at every
eighth column). Generally, such files must be converted to a standard format - frequently by replacing all tabs with the appropriate num-
ber of spaces - before they can be processed by HP-UX 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:
The parameter specifies tab settings for the file. The value of tabs must be one of the following:
1. A list of column numbers separated by commas, indicating tabs set at the specified columns;
2. A followed immediately by an integer n, indicating tabs at intervals of n columns;
3. A followed by the name of a ``canned'' tab specification.
Standard tabs are specified by or equivalently, etc. Recognized canned tabs are defined by the command (see
tabs(1)).
The 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 inserted at the beginning of the line.
The parameter specifies a number of spaces to be inserted at the beginning of each line. The value of margin must be an
integer.
The parameter takes no value. Its presence indicates that the line containing the format specification is to be deleted
from the converted file.
The parameter takes no value. Its presence indicates that the current format is to prevail only until another format
specification is encountered in the file.
Default values (assumed for parameters not supplied) are and If the 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:
If a format specification can be disguised as a comment, it is not necessary to code the parameter.
Several HP-UX system commands correctly interpret the format specification for a file. Among them is which can be used to convert files to
a standard format acceptable to other HP-UX system commands.
SEE ALSO
ed(1), newform(1), tabs(1).
fspec(4)