Hi I have a bit of c code which I'm trying to use as a relay between apache and a scgi cluster.
Example of problem code is below:
while((n = recv(scgiSock, local_data, MAX_LENGTH, 0)) > 0)
{
time(&t2);
time_now = t2 - t1;
if(time_now > TIMEOUT)
... (2 Replies)
Hi
This will be useful who is looking for checking the files in a directory
#chmod 777 /cronacle/tools/teradata/opo/bin/file_check.sh
SUBJECT=`echo "File Not Found"`
SUBJECT1=`echo "File Found"`
#RECIPIENT=Madhu.Reddy@ge.com
cd /cronacle/tools/teradata/opo/bin
file_list=attach.sh
if
... (3 Replies)
How can I check if a file exists in shell script. Basically, I want to check if a file Test_msgs has been created today. If it has been then append data to it. Otherwise, create it. I have written the following but it does not work.
todaysdate=$(date +%d%m%Y)
timenow=$(date +%H%M%S)... (4 Replies)
Hi,
I'm new to UNIX, at least shell programming and am having trouble figuring out a problem i'm having. In one section in my nested if statement, i want the program to test if the file does not exist, based on an argument supplied at the command line by the user. What i have is
elif ; then... (3 Replies)
How can I check if a file exists in csh? I know there is "-e $file" but do not know exactly how to use it.
I have tried the below but I'm getting "Bad : modifier in $ ( )."
foreach f ($AfullnameLst)
if (-e $f) then
echo "$f: file exists"
endif
end (6 Replies)
Hi Everyone,
I am writing a shell script for the below needs and would like your suggestions and advices.
I have a lot of scripting files(Shell Scripts) under the directory:
/home/risk_dev/dev
I have another directory which has a lot of shell scripts under the directory:
... (2 Replies)
Hi All,
I am facing a problem while checking for existence of file over ssh !
Basically, i want to ssh and check if file exists.. If file exists return 1. If file does not exits return 0 (or any value)
I am using the below code
file_avail=`ssh username@host "if ]; then exit 1;... (10 Replies)
In several scripts that process files matched by name pattern I needed to add a check for file existence. Just to illustrate let's say I need to process all N??? files:
/tmp$ touch N100 N101
/tmp$ l ?10
-rw-rw-r-- 1 moss group 0 Apr 19 11:22 N100
-rw-rw-r-- 1 moss group ... (10 Replies)
Hi,
I am writing the shell script in ksh to check certain no of files exists,In my case there are 7 files exist like below
Sales1_timstamp.csv
Sales2_timstamp.csv
Sales3_timstamp.csv
Sales4_timstamp.csv
Sales5_timstamp.csv
Sales7_timstamp.csv
Sales7_timstamp.csv
Once all the files... (4 Replies)
Discussion started by: SRPR
4 Replies
LEARN ABOUT PLAN9
test
TEST(1) General Commands Manual TEST(1)NAME
test - set status according to condition
SYNOPSIS
test expr
DESCRIPTION
Test evaluates the expression expr. If the value is true the exit status is null; otherwise the exit status is non-null. If there are no
arguments the exit status is non-null.
The following primitives are used to construct expr.
-r file True if the file exists (is accessible) and is readable.
-w file True if the file exists and is writable.
-x file True if the file exists and has execute permission.
-e file True if the file exists.
-f file True if the file exists and is a plain file.
-d file True if the file exists and is a directory.
-s file True if the file exists and has a size greater than zero.
-t fildes True if the open file whose file descriptor number is fildes (1 by default) is the same file as /dev/cons.
s1 = s2 True if the strings s1 and s2 are identical.
s1 != s2 True if the strings s1 and s2 are not identical.
s1 True if s1 is not the null string. (Deprecated.)
-n s1 True if the length of string s1 is non-zero.
-z s1 True if the length of string s1 is zero.
n1 -eq n2 True if the integers n1 and n2 are arithmetically equal. Any of the comparisons -ne, -gt, -ge, -lt, or -le may be used in place
of -eq. The (nonstandard) construct -l string, meaning the length of string, may be used in place of an integer.
These primaries may be combined with the following operators:
! unary negation operator
-o binary or operator
-a binary and operator; higher precedence than -o
( expr ) parentheses for grouping.
The primitives -b, -u, -g, and -s return false; they are recognized for compatibility with POSIX.
Notice that all the operators and flags are separate arguments to test. Notice also that parentheses and equal signs are meaningful to rc
and must be enclosed in quotes.
EXAMPLES
Test is a dubious way to check for specific character strings: it uses a process to do what an rc(1) match or switch statement can do. The
first example is not only inefficient but wrong, because test understands the purported string "-c" as an option.
if (test $1 '=' "-c") echo OK # wrong!
A better way is
if (~ $1 -c) echo OK
Test whether is in the current directory.
test -f abc -o -d abc
SOURCE
/sys/src/cmd/test.c
SEE ALSO rc(1)TEST(1)