Platform details:
Shell: bash
OS : Oracle Linux 6.4 (Same kernel as RHEL )
test1.sh is a very basic script which will loop until count variable reaches 15.
test2.sh below is almost same as test1.sh script except that 4 spaces denoted using <SPACE> below are missing and hence it doesn't work.
If you miss any one of these 4 space characters , the script won't work. Why ? I didn't expect this from a modern shell like BASH.
Hello, Im writing a script that works by recursively going into directories with find. But I have some directories that have spaces in them.. so I need to parse the variables to add a backslash before the spaces.
Im not exactly sure how how to do this in bash, and honestly I dont think I know... (3 Replies)
I'm trying to run a Linux virus scan on a list of files/folders I have ported to list.txt in a format:
some file with spaces
some other file
but I need to feed my scanning script in the format:
some\ file\ with\ spaces/
some\ other\ file/
so I would like to read in list.txt and output... (6 Replies)
Hello dear community!
I've recently written a BASH function for auto completion of options. It works like following: if a user types a command and then an argument to this command which starts with "^-" and then presses TAB, then 'user_command --help (or -h)' is invoked and possible options are... (0 Replies)
Hey all,
I have a very simple regular expression that I use when I want to allow only letters with spaces. (I know this regex has a lot of shortcomings, but I'm still trying to learn them)
isAlpha='^*$'However, when I bring this over to BASH it doesn't allow me to enter spaces.
I use the... (3 Replies)
Hello!
I have one problem with my bash script - I would like to be able to read white space characters from stdin (for example single " ") - can I acomplish that somehow? I need to read only one character at the time, so I use read -s -n 1 var but it doesn't work for whitespaces apparently.
... (3 Replies)
There's a JavaScript file that I call from command line (there's a framework) like so:
./RunDiag.js param1:'string one here' param2:'string two here'
I have a shell script where I invoke the above command. I can run it in a script as simple as this
#!/bin/bash
stuff="./RunDiag.js... (4 Replies)
Hi guys, I'm new here and new to shell scripting so don't be hard on me
I'm trying to create a bash script to restart a process by name in Mac OSX.
I have no problem killing the application, the problem comes when launching it again.
I managed to store the path in a variable lets say
... (8 Replies)
I'm trying to search for all files in directory with particular GID then change the GID to match the UID of each file:
#!/bin/sh
for i in $(find /dump -gid 200 | sed 's/\ /\\\ /g' | sed 's/\&/\\\&/g'); do
chgrp $(ls -ln ${i} | awk '{print $3}') ${i}
done
I'm using sed to deal with... (7 Replies)
For the record, I already tried telling mgmt and the users to disallow spaces in filenames for this script, but it isn't happening for a number of ID10T-error-based reasons.
I have simple list of 3 files in a directory that are named like this:
bash-3.2$ ls -1 file*
file1
file1 part2... (2 Replies)
Hi everyone,
I'm trying to write my first ever shell script, the OS is Raspbian. The code I have written must be executed whenever a certain database has been modified. The database resides on a Windows server to which I have a mount point, and I have no control over the Windows server at all so... (2 Replies)
Discussion started by: gjws
2 Replies
LEARN ABOUT BSD
strcat
STRING(3) Library Functions Manual STRING(3)NAME
strcat, strncat, strcmp, strncmp, strcasecmp, strncasecmp, strcpy, strncpy, strlen, index, rindex - string operations
SYNOPSIS
#include <strings.h>
char *strcat(s, append)
char *s, *append;
char *strncat(s, append, count)
char *s, *append;
int count;
strcmp(s1, s2)
char *s1, *s2;
strncmp(s1, s2, count)
char *s1, *s2;
int count;
strcasecmp(s1, s2)
char *s1, *s2;
strncasecmp(s1, s2, count)
char *s1, *s2;
int count;
char *strcpy(to, from)
char *to, *from;
char *strncpy(to, from, count)
char *to, *from;
int count;
strlen(s)
char *s;
char *index(s, c)
char *s, c;
char *rindex(s, c)
char *s, c;
DESCRIPTION
These functions operate on null-terminated strings. They do not check for overflow of any receiving string.
Strcat appends a copy of string append to the end of string s. Strncat copies at most count characters. Both return a pointer to the null-
terminated result.
Strcmp compares its arguments and returns an integer greater than, equal to, or less than 0, according as s1 is lexicographically greater
than, equal to, or less than s2. Strncmp makes the same comparison but looks at at most count characters. Strcasecmp and strncasecmp are
identical in function, but are case insensitive. The returned lexicographic difference reflects a conversion to lower-case.
Strcpy copies string from to to, stopping after the null character has been moved. Strncpy copies exactly count characters, appending
nulls if from is less than count characters in length; the target may not be null-terminated if the length of from is count or more. Both
return to.
Strlen returns the number of non-null characters in s.
Index (rindex) returns a pointer to the first (last) occurrence of character c in string s or zero if c does not occur in the string. Set-
ting c to NULL works.
4th Berkeley Distribution October 22, 1987 STRING(3)