I am trying to check if the file is in dos format using simple grep command but the problem is lines inside the file with have special characters in between and in some lines end of the line will have the '^M' character.
I tried the below command in simple line(without special character in between the line) and it works fine but for the line which are having special characters it doesn't.
command:
output i get from above command :
0
which is wrong, since we have ^M character at the end of the line and i expect the command output to be 1
:confused: I tryied to use the mount Command (and the msdos.utils) in Darwin 1.4 (OS X) to format a Compact Flash in DOS Format (I had already this native format but I changed it with Disk Utility in MacOS standard and the PC Card slot of a Windows 98-Laptop can't nore read the card) I want to... (1 Reply)
How to check if file is in a given format?
For instance: if file records are delimeted with "|" ( pipes) and have exactly 26 fields?
File is pretty big (~3 mil reccords), so not sure if I have to check all records or just head/tail records or smth.
Any ideas are much much more than... (11 Replies)
:confused:
Hello,
Is there any way to use the dir command / some DOS Script to select only first file of similar pattern of files in a direcotory and rename it for example, one directory has 5 files
abc_1005.txt
abc_5256.txt
abc_2001.txt
abc_2003.txt
abc_3006.txt
by use script I would... (2 Replies)
I have to find the specific formatted file is present in the received list in the directory, for which I have written:
file_list=`ls -lrt /tmp/vinay/act/files |grep "$cdate"| awk '{print $9}'`
while read fileStr
do
find $file_list $fileStr > /dev/null
status=`echo $?`
if ; then
... (3 Replies)
Hi,
I am writting a script, which accepts input file as parameter.
Input file name is aa_bb_cc_dd_ee.<ext>
I need to check that input file name should be of 5 fileds.
Please help me out. :confused: (7 Replies)
Hi,
I am new to shell scripting and exploring it , I have developed few sample shell script but I have developed them on windows xp notepad and then saving them on folder and then testing them on cywgin and running perfectly...but these scripts are in dos format and I want to convert them in unix... (1 Reply)
Hi Folks,
I have few mailids in a text file and need to check whether the mailid is in correct format or not.
If just to check whether the string is a mailid or not there is a perl module Email::Valid to do the business or we can implement our own logic.
But the mail_ids I am having is... (4 Replies)
Hi Team,
The content of the file is as follows.
asdf
234
asdf
asdf
dsfg
gh
67
78
The file is in DOS format (not in Unix Format). The file is transferred to Unix. I need a unix command to check the number of blank lines in a input (comming from Windows). If it is greater than... (4 Replies)
Hi,
This is my DOS Batch file.
@echo off
echo "Program Name :" %0
rem echo "Next param :" %1
echo "Next param :" "Username/Password"
echo "User Id :" %2
echo "User Name :" %3
echo "Request ID ... (4 Replies)
So, i have this requirement where i need to check the file format, whether it's EBCDIC or ASCII, and based on format retrieve the information from that file:
my file is:
file1.txt-->this ebcdic file
file2.txt-->ascii file
i tried below code:
file=file1.txt
type="`file $file`"
i get... (7 Replies)
Discussion started by: gnnsprapa
7 Replies
LEARN ABOUT ULTRIX
grep
grep(1) General Commands Manual grep(1)Name
grep, egrep, fgrep - search file for regular expression
Syntax
grep [option...] expression [file...]
egrep [option...] [expression] [file...]
fgrep [option...] [strings] [file]
Description
Commands of the family search the input files (standard input default) for lines matching a pattern. Normally, each line found is copied
to the standard output.
The command patterns are limited regular expressions in the style of which uses a compact nondeterministic algorithm. The command patterns
are full regular expressions. The command uses a fast deterministic algorithm that sometimes needs exponential space. The command pat-
terns are fixed strings. The command is fast and compact.
In all cases the file name is shown if there is more than one input file. Take care when using the characters $ * [ ^ | ( ) and in the
expression because they are also meaningful to the Shell. It is safest to enclose the entire expression argument in single quotes ' '.
The command searches for lines that contain one of the (new line-separated) strings.
The command accepts extended regular expressions. In the following description `character' excludes new line:
A followed by a single character other than new line matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (dot) matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 0 or 1 matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or new line match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is the following: [], then *+?, then concatenation, then | and new
line.
Options-b Precedes each output line with its block number. This is sometimes useful in locating disk block numbers by context.
-c Produces count of matching lines only.
-e expression
Uses next argument as expression that begins with a minus (-).
-f file Takes regular expression (egrep) or string list (fgrep) from file.
-i Considers upper and lowercase letter identical in making comparisons and only).
-l Lists files with matching lines only once, separated by a new line.
-n Precedes each matching line with its line number.
-s Silent mode and nothing is printed (except error messages). This is useful for checking the error status (see DIAGNOSTICS).
-v Displays all lines that do not match specified expression.
-w Searches for an expression as for a word (as if surrounded by `<' and `>'). For further information, see only.
-x Prints exact lines matched in their entirety only).
Restrictions
Lines are limited to 256 characters; longer lines are truncated.
Diagnostics
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
See Alsoex(1), sed(1), sh(1)grep(1)