I need to do something like this:
for i in 1 2 3 4 5; do
arr=$(awk 'NR="$i" { print $2 }' file_with_5_records)
done
That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop.
Is my... (2 Replies)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Hi,
Please help me writing for loop to fetch data and store in variable from a text file which contains data as below:
12
46
56
5466
111
There are 40 lines of data...!!!!
I jus need all data from line no 4 to 40 ie data for 4,6,8......40. (2 Replies)
Hi ,
i am using below code print the PATH value inside for loop but it's printing just PATHD & not the original value which i defined.
#!/usr/bin/bash
PATHD1=/spp/sp/LIVE
export PATHD1
PATHD2=/spp/sp/TEST
export PATHD2
j=2
for (( i = 1 ; i <= j ; i++ ))
do
PATH_DIR=PATH$i
echo PATHD$i... (2 Replies)
Hi all
Sorry for the basic question, but i am writing a shell script to get around a slightly flaky binary that ships with one of our servers. This particular utility randomly generates the correct information and could work first time or may work on the 12th or 100th attempt etc !.... (4 Replies)
Hi All,
I have a fixed-width datafile from which i need to extract value/string starting from some position to the specified length in each of the lines.
awk '{print substr($0,x,y)}' datafile --- is working fine
but
awk 'BEGIN{a=0}{a=substr($0,x,y);print $a}' datafile ---is giving... (3 Replies)
Please help me to automatically assign the output of awk command to the variables cs3, cs4, cs5 and cs6 using a for loop. The below code is not working.
for i in 3 4 5 6
do
cs$i=`awk -F"|" 'BEGIN{sum=0}{sum=sum+$'$i'}END{printf("%d\n", sum)}' css`
done
echo $cs3 $cs4 $cs5 $cs6 (9 Replies)
echo "hello123" | tr -dc '' | wc -c
using this command i can count the no of times a number from 0-9 occurs in the string "hello123"
but how do i save this result inside a variable?
if i do
x= echo "hello123" | tr -dc '' | wc -c
that does not work...plz suggest..thanks (3 Replies)
Hi All,
Is it possible to grep for two files and assign their names to two separate variables with for loop? I am doing the below currently:
if
then
for fname in $( cd $dirA ; ls -tr | grep "^Ucountry_file$")
do
InFile=$dirA/$fname
... (4 Replies)
Discussion started by: swasid
4 Replies
LEARN ABOUT FREEBSD
xo_errx
LIBXO(3) BSD Library Functions Manual LIBXO(3)NAME
xo_err -- emit errors and warnings in multiple formats
LIBRARY
library ``libxo''
SYNOPSIS
#include <libxo/xo.h>
void
xo_warn(const char *fmt, ...);
void
xo_warnx(const char *fmt, ...);
void
xo_warn_c(int code, const char *fmt, ...);
void
xo_warn_hc(xo_handle_t *xop, int code, const char *fmt, ...);
void
xo_err(int eval, const char *fmt, ...);
void
xo_errc(int eval, int code, const char *fmt, ...);
void
xo_errx(int eval, const char *fmt, ...);
void
xo_message(const char *fmt, ...);
void
xo_message_c(int code, const char *fmt, ...);
void
xo_message_hc(xo_handle_t *xop, int code, const char *fmt, ...);
void
xo_message_hcv(xo_handle_t *xop, int code, const char *fmt, va_list vap);
DESCRIPTION
Many programs make use of the standard library functions err(3) and warn(3) to generate errors and warnings for the user. libxo wants to
pass that information via the current output style, and provides compatible functions to allow this.
These functions display the program name, a colon, a formatted message based on the arguments, and then optionally a colon and an error mes-
sage associated with either errno or the code parameter.
EXAMPLE:
if (open(filename, O_RDONLY) < 0)
xo_err(1, "cannot open file '%s'", filename);
ADDITIONAL DOCUMENTATION
Complete documentation can be found on github:
http://juniper.github.io/libxo/libxo-manual.html
libxo lives on github as:
https://github.com/Juniper/libxo
The latest release of libxo is available at:
https://github.com/Juniper/libxo/releases
SEE ALSO xo_emit(3)HISTORY
The libxo library was added in FreeBSD 11.0.
AUTHOR
Phil Shafer
BSD December 4, 2014 BSD