Greetings to all,
I would like to read input from a file and make duplications from it with Linux shell.
For e.g.
Input file
-----------
ABC
ABB
ABA
-------------------------------
Output file
------------
ABC
ABC
ABC
ABB
ABB (6 Replies)
#!/bin/sh
rpt="/export/home/legato/rpt_offsite"/test_eject.tape
cat <$rpt
while read line
do
echo $line
perform routine
done
I am trying to read the contents of this file line by line and perform a routine for each line read.
The file contents are numbers..
What is wrong with my... (1 Reply)
hi,
it seems i can read using
cat file | while read line
but when i tried reading using
while read line < myfile
then the last line kept on being returned
why?
thanks (2 Replies)
I am trying to read input for a C program (that expects input from the user) from a file using the shell command:
progname < filename
but it seems that the program considers the char '<'
as the first input, hence causing an "error" in my program.
I checked it with another program and it... (2 Replies)
Hi guys,
I am new to AWK and unix scripting. Please see below my problem and let me know if anyone you can help.
I have 2 input files (example given below)
Input file 2 is a standard file (it will not change) and we have to get the name (second column after comma) from it and append it... (5 Replies)
I need to know how the the string constant from Input File should be read and provide as input data for the script .
INPUT FILE
CONST VARIABLE
myname=/root/dir/syslog/myname1
myname=/root/dir/syslog/myname2
myname=/root/dir/syslog/myname3
urname=/root/dir/syslog/urname1... (6 Replies)
Hello,
I've been trying to come up with a solution for the following problem; I have an input file with two columns and I want to print as an output the first column without any changes but for the second column, I want to divide it by its last value. Example input:
1 9
2 10
3 11
4 12
5... (14 Replies)
Hi,
I need to read the date from the input file. The format of the input file is as follows:
a_b_c_yyyymmdd.txt
I need to read the date(yyyymmdd) part from the name of the input file.
Would really appreciate if someone can help me in this regard
Thanks a lot. (1 Reply)
I have a text file containing some file names. And I've a directory containing files with different name. I want to do some operaration (deleting) on the files which are NOT listed on the text file.
Im using KSH.
PLEASE HELP !!!!!
Urgent Help!!!!! (2 Replies)
I am not able to capture the user input in this script(bash).There is prompt for user input.Could some one help me capture user input while reading afile?
while read line
do
echo "$i"
path1=$line
path2=`echo $line|sed s/new_dir/old_dir/`
echo "Do you want to replace?";... (4 Replies)
Discussion started by: parijat guh
4 Replies
LEARN ABOUT FREEBSD
paste
PASTE(1) BSD General Commands Manual PASTE(1)NAME
paste -- merge corresponding or subsequent lines of files
SYNOPSIS
paste [-s] [-d list] file ...
DESCRIPTION
The paste utility concatenates the corresponding lines of the given input files, replacing all but the last file's newline characters with a
single tab character, and writes the resulting lines to standard output. If end-of-file is reached on an input file while other input files
still contain data, the file is treated as if it were an endless source of empty lines.
The options are as follows:
-d list Use one or more of the provided characters to replace the newline characters instead of the default tab. The characters in list
are used circularly, i.e., when list is exhausted the first character from list is reused. This continues until a line from the
last input file (in default operation) or the last line in each file (using the -s option) is displayed, at which time paste
begins selecting characters from the beginning of list again.
The following special characters can also be used in list:
newline character
tab character
\ backslash character
Empty string (not a null character).
Any other character preceded by a backslash is equivalent to the character itself.
-s Concatenate all of the lines of each separate input file in command line order. The newline character of every line except the
last line in each input file is replaced with the tab character, unless otherwise specified by the -d option.
If '-' is specified for one or more of the input files, the standard input is used; standard input is read one line at a time, circularly,
for each instance of '-'.
EXIT STATUS
The paste utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
List the files in the current directory in three columns:
ls | paste - - -
Combine pairs of lines from a file into single lines:
paste -s -d '
' myfile
Number the lines in a file, similar to nl(1):
sed = myfile | paste -s -d '
' - -
Create a colon-separated list of directories named bin, suitable for use in the PATH environment variable:
find / -name bin -type d | paste -s -d : -
SEE ALSO cut(1), lam(1)STANDARDS
The paste utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A paste command appeared in Version 32V AT&T UNIX.
BSD June 25, 2004 BSD