12-29-2013
How to pre-append a variable string to each line in a file?
How to pre-append a variable string to each line in a file contains both single and double quotes?
The variable string has no quotes in it.
thank you very much.
Last edited by dtdt; 12-29-2013 at 12:02 PM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi
i have the following function, reading file line by line,
if line contains "Change state" i need to cut some fields otherwise i need to append the total line to the new file
function parse()
{
while read LINE
do
echo $LINE |grep -q "Change state"
if
then
echo $LINE |grep -q... (1 Reply)
Discussion started by: Satyak
1 Replies
2. Shell Programming and Scripting
Hi, guys. I have one question:
I have a file called "group", the contents of it is below:
********************************
...
test:x:203:
sales:x:204:
repair:x:205:
research:x:206:brownj
...
***********
Now I want to add string ",sherrys" at the end of "research:x:206:brownj", so... (5 Replies)
Discussion started by: daikeyang
5 Replies
3. UNIX for Dummies Questions & Answers
Hi
I have a input file :::
1583904589034853904
1690234849023849023
159823890238409
1690238490238490238490
.
.
.
The output file should have the record 16 appended to the record 15 and a variable should be added at a FIXED POSTION at 55.
The records are been processed inside a loop... (3 Replies)
Discussion started by: akashhello
3 Replies
4. Shell Programming and Scripting
Hi Friends, I have a file with many lines as shown below.
/START SAMPLE LINE/
M:\mmarimut_v6.4.0_pit_01\java\build.xml@@\main\v6.4.0_pit_a
M:\mmarimut_v6.4.0_pit_01\port\Post.java@@\main\v6.4.0_pit_a
M:\mmarimut_v6.4.0_pit_01\switchview\View.java@@\main\v6.4.0_pit_a
/END SAMPLE LINE/
I... (1 Reply)
Discussion started by: nmattam
1 Replies
5. Shell Programming and Scripting
Hi friends,
I have a file containing many lines as follows.
M:\mmarimut_v6.4.0_pit_01\java\build.xml@@\main\v6.4.0_pit_a
M:\mmarimut_v6.4.0_pit_01\ADBasicView.java@@\main\v6.4.0_pit_a
I would like to append the string "\0" at the end of each line in the file. The output should look... (10 Replies)
Discussion started by: nmattam
10 Replies
6. Shell Programming and Scripting
Hi,
Please suggest me to write unix command, HEADER20110101 string append to first line of a file..
Regards
Akshu (3 Replies)
Discussion started by: akshu.agni
3 Replies
7. Shell Programming and Scripting
I want to append values to same string variable inside a recursive function that I have .. I do not want to write to any file but use a variable..
Can anyone please help with it? Thanks in advance. (6 Replies)
Discussion started by: Prev
6 Replies
8. UNIX for Dummies Questions & Answers
Right now, my code is:
s/Secondary Ins./Secondary Ins.\
1/g
It's adding a 1 as soon as it finds Secondary Ins.
Primary Ins.: MEDICARE B DMERC Secondary Ins.
1: CONTINENTAL LIFE INS
What I really want to achieve is having a 1 added on the next line that contain "Secondary Ins." It... (4 Replies)
Discussion started by: newbeee
4 Replies
9. Shell Programming and Scripting
hello,
I have problem with writing/adjusting a shell script.
I searched forum and unfortunately couldn't write scipt based on the information I found.
I never wtire such so it's hard for me and I do need to modify one script immediately.
case looks like:
1. 'file' that needs to be modified... (3 Replies)
Discussion started by: bipbip
3 Replies
10. UNIX for Beginners Questions & Answers
Hi,
I have a working script.
It does what I am intending it to but a bit confused whether the sed part is supposed to be working or not. Further down is the script with the sed part that should have been working but not and the grep -v part which is the workaround that I am using at the... (10 Replies)
Discussion started by: newbie_01
10 Replies
LEARN ABOUT FREEBSD
openpam_readword
OPENPAM_READWORD(3) BSD Library Functions Manual OPENPAM_READWORD(3)
NAME
openpam_readword -- read a word from a file, respecting shell quoting rules
LIBRARY
Pluggable Authentication Module Library (libpam, -lpam)
SYNOPSIS
#include <sys/types.h>
#include <stdio.h>
#include <security/pam_appl.h>
#include <security/openpam.h>
char *
openpam_readword(FILE *f, int *lineno, size_t *lenp);
DESCRIPTION
The openpam_readword() function reads the next word from a file, and returns it in a NUL-terminated buffer allocated with malloc(3).
A word is a sequence of non-whitespace characters. However, whitespace characters can be included in a word if quoted or escaped according
to the following rules:
o An unescaped single or double quote introduces a quoted string, which ends when the same quote character is encountered a second time.
The quotes themselves are stripped.
o Within a single- or double-quoted string, all whitespace characters, including the newline character, are preserved as-is.
o Outside a quoted string, a backslash escapes the next character, which is preserved as-is, unless that character is a newline, in which
case it is discarded and reading continues at the beginning of the next line as if the backslash and newline had not been there. In all
cases, the backslash itself is discarded.
o Within a single-quoted string, double quotes and backslashes are preserved as-is.
o Within a double-quoted string, a single quote is preserved as-is, and a backslash is preserved as-is unless used to escape a double
quote.
In addition, if the first non-whitespace character on the line is a hash character (#), the rest of the line is discarded. If a hash charac-
ter occurs within a word, however, it is preserved as-is. A backslash at the end of a comment does cause line continuation.
If lineno is not NULL, the integer variable it points to is incremented every time a quoted or escaped newline character is read.
If lenp is not NULL, the length of the word (after quotes and backslashes have been removed) is stored in the variable it points to.
RETURN VALUES
If successful, the openpam_readword() function returns a pointer to a dynamically allocated NUL-terminated string containing the first word
encountered on the line.
The caller is responsible for releasing the returned buffer by passing it to free(3).
If openpam_readword() reaches the end of the line or file before any characters are copied to the word, it returns NULL. In the former case,
the newline is pushed back to the file.
If openpam_readword() reaches the end of the file while a quote or backslash escape is in effect, it sets errno to EINVAL and returns NULL.
IMPLEMENTATION NOTES
The parsing rules are intended to be equivalent to the normal POSIX shell quoting rules. Any discrepancy is a bug and should be reported to
the author along with sample input that can be used to reproduce the error.
SEE ALSO
openpam_readline(3), openpam_readlinev(3), pam(3)
STANDARDS
The openpam_readword() function is an OpenPAM extension.
AUTHORS
The openpam_readword() function and this manual page were developed by Dag-Erling Smorgrav <des@des.no>.
BSD
September 12, 2014 BSD