for me it does not work, with the actual files i have.
That is why i wrote "strange" in the beginning. I've run it before and it worked fine
but i do not know what could be wrong now.
All,
I am trying to copy some data from /admin/reports/Sept/ccn/c_ivsstr01 to /home/users/myhomedir and I am getting an error I have never seen before:
The file access permissions do not allow the specified action.
The permissions on the file are -rw-r--r-- and I am the owner of the file... (3 Replies)
Dear all,
I am reading a file that has 1 column. While reading I must find the line references from the another file. The following shell doesn't works.
Please help
#!/bin/bash
while read filename; do
grep ${filename} fs_full.dat >> unprocfull.dat;
done < unproc.dat
But when... (2 Replies)
Good day.
I really hope U can help me with this as I'm stumped!
In the command line eg: read X; echo $x . Works perfectly fine.
Then running the same thing in my script it sometimes exiqute immediatly after pressing enter and continuiing. Not exiting the script I re-run the "read" section.... (1 Reply)
Hello! I think this should be an easy solution. I have a large file with many fields of data. The first field has a unique identifier (a subject number) for every record for a chunk of data. Something like this:
There were ten experimental conditions (ec), but the ec is identified by only... (11 Replies)
Hi folks
I am facing a strange error while splitting a '|' delimited file 'file1' based on column '3'. (File is 40 columns wide).
I wish to create as many files 'file_n' from the file 'file1' as distinct values of the column '3'; in 'file1'
eg: file1:
qwe|qweqw|123|fg... (3 Replies)
Hello unix users :)
I am trying to grep a string from a file that both the file and the string may have characters in them that are quite... strange, like würzburger.
Well, bash reads this as
W%C3%BCrzburger
For example, if i do
wget W%C3%BCrzburger
the output is:
--2012-01-08... (2 Replies)
Hi Guys,
I have a small script which greps for the username reading from stdinput.
./file.sh pattern
pattern=$1
grep "blah blah.*$pattern" /home/user/log.txt
Instead of typing the pattern everytime i want to read the pattern from a file inside the shell script and execute the... (5 Replies)
Hi All,
I am having a job and I need to send email when the job is running. On any other case (success,fail) I don't needed to send email. I check with BMC they told they dont have that in the version I am using.
So I created a dependent job and grepped for the status and sent email. My... (1 Reply)
Hi Team,
in /tmp folder i have thousands of log files i want to read each file and grep a value called "Calling This".
Each logfile name is different but it ends with .log.
How can i achieve this?
Please excuse if i did any mistake by not following forum standards. I will surely follow... (10 Replies)
I have a very big input file <inputFile1.txt> which has list of mobile no
inputFile1.txt
3434343
3434323
0970978
85233
... around 1 million records
i have another file as inputFile2.txt which has some log detail big file
inputFile2.txt
afjhjdhfkjdhfkd df h8983 3434343 | 3483 | myout1 |... (3 Replies)
Discussion started by: reldb
3 Replies
LEARN ABOUT OPENDARWIN
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u The -u option guarantees that the output is unbuffered.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
DIAGNOSTICS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-benstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
BSD September 15, 2001 BSD