Hi,
I am new to unix. Is their a way to pass the output of the line below to a variable var1.
ls -1t | head -1.
I am trying something like var1=ls -1t | head -1, but I get error.
Situation is: I get file everyday through FTP in my unix box. I have to write a script that picks up first... (1 Reply)
I have a shell script which does the encryption of a file where i am passing the file name as a command line argument,but later on the script waits on the screen to enter Y or N
what is the command i should be using on the shell script
#!/bin/bash -x
outfilename=file.out
echo... (8 Replies)
Hi,
I have a very small requirement where i need to pass command output as an argument while invoking the shell script..
I need to call like this
sh testscript.sh ' ls -t Appl*and*abc* | head -n 1'
This will list one file name as ana argument..
I will be using "$1" in the shell... (2 Replies)
i want to write a shell script function that will ftp the files passed in the command line . i have written a shell script for ftp but how will it do for all files passed in command line argument ,
i am passing 4 files as argument
./ftp.sh file1 file2 file3 file4
code written by me... (5 Replies)
I have one working awk command line. Which taking data from the “J1202523.TXT” file and generating the “brazil.dat” file. PFB code.
awk '{ DUNS = substr($0,0,9);if ( substr($0,14,3) == "089" ) print DUNS }' J1202523.TXT > Brazil.dat
But now I want to pass two parameter as a command line argument... (4 Replies)
Hello all,
New to C and I'm trying to write a program which can run a unix command. Would like to have the option of giving the user the ability to enter arguments e.g for "ls" be able to run "ls -l".
I would appreciate any help.
Thanks
#include <stdio.h>
#include <unistd.h>
#include... (3 Replies)
Hi,
I have a requirement to work on script, it should take either of arguments.
wrote it as below.
#!/bin/bash
usage() {
echo "$0: missing argument OR invalid option !
Usage : $0 -m|-r|-d
}
while getopts mrdvh opt; do
case "$opt" in
m) monitor_flag=monitor;;... (1 Reply)
I need to write a shell script, when I run that script I should pass those arguments if not, then script should not run and pass the error message like
invalid option - - should pass the argument.
and Exit from the script
https://www.unix.com/images/misc/progress.gif (1 Reply)
I need to write a shell script, when I run that script I should pass those arguments if not, then script should not run and pass the error message like
invalid option - - should pass the argument.
and Exit from the script (8 Replies)
Discussion started by: Nsharma3006
8 Replies
LEARN ABOUT PHP
escapeshellarg
ESCAPESHELLARG(3) 1 ESCAPESHELLARG(3)escapeshellarg - Escape a string to be used as a shell argumentSYNOPSIS
string escapeshellarg (string $arg)
DESCRIPTION escapeshellarg(3) adds single quotes around a string and quotes/escapes any existing single quotes allowing you to pass a string directly
to a shell function and having it be treated as a single safe argument. This function should be used to escape individual arguments to
shell functions coming from user input. The shell functions include exec(3), system(3) and the backtick operator.
On Windows, escapeshellarg(3) instead removes percent signs, replaces double quotes with spaces and adds double quotes around the string.
PARAMETERS
o $arg
- The argument that will be escaped.
RETURN VALUES
The escaped string.
EXAMPLES
Example #1
escapeshellarg(3) example
<?php
system('ls '.escapeshellarg($dir));
?>
SEE ALSO escapeshellcmd(3), exec(3), popen(3), system(3), backtick operator.
PHP Documentation Group ESCAPESHELLARG(3)