Sponsored Content
Top Forums Shell Programming and Scripting How to remove exisiting file content from a file and have to append new file content? Post 302913803 by SriniShoo on Wednesday 20th of August 2014 03:12:56 AM
Old 08-20-2014
your code should over-write the existing data.
If it still appends,
Code:
x=`cat input.txt |wc -1`
>output.txt
awk 'NR>1 && NR<'$x' ' input.txt > output.txt

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Remove content from file

hey all, I have a file with records in following format 8-29-2006 13:01:45|ABC|45 8-29-2006 14:23:12|DEF|21 8-30-2006 00:04:57|ABC|34 I want to remove all yesterday records. Can anyone show me how? Thanks! (10 Replies)
Discussion started by: mpang_
10 Replies

2. Shell Programming and Scripting

remove space from file content

i am a bit new to shell scripting i have a file containing xxxx xx xx but i want to output the content as xxxxxxxx. thus removing the space. any idea how i can do this (4 Replies)
Discussion started by: blackzinga
4 Replies

3. Shell Programming and Scripting

Remove specific content in a file

Hi, I have a file called fl_list consists of files i have to archive. I want to create a exception parm called except_parm, so if it finds the directory it will not archive these files and remove from fl_list. $ cat fl_list /apps/dev/ihub/ready/IA003B/IA003B_Deal_Header_yyyymmdd_hhmmss.txt... (1 Reply)
Discussion started by: k9cheung
1 Replies

4. Shell Programming and Scripting

Append to exisiting file on same line.

File Format ABC|ABC|ABC| need to add another text after last | which would a unix command output. ---------- Post updated at 02:05 PM ---------- Previous update was at 01:45 PM ---------- wc -l file| awk '{print $1}' | sed 's/$//' >> existingfile It still adds to new line (4 Replies)
Discussion started by: dinjo_jo
4 Replies

5. Shell Programming and Scripting

if file is NOT empty, then append content to file

hi people, i have texts down.txt and down-new.txt and i want to check; - if down-new.txt is NOT empty, then write date and its content to /home/gc_sw/down.txt for example; down.txt:AAAA SSSS down-new.txt:123 456 and after checking down-new.txt is NOT empty, down.txt should... (10 Replies)
Discussion started by: gc_sw
10 Replies

6. Shell Programming and Scripting

Remove the file content based on the Header of the file

Hi All, I want to remove the content based on the header information . Please find the example below. File1.txt Name|Last|First|Location|DepId|Depname|DepLoc naga|rr|tion|hyd|1|wer|opr Nava|ra|tin|gen|2|wera|opra I have to search for the DepId and remove the data from the... (5 Replies)
Discussion started by: i150371485
5 Replies

7. Shell Programming and Scripting

Sed: replace content from file with the content from file

Hi, I am having trouble while using 'sed' with reading files. Please help. I have 3 files. File A, file B and file C. I want to find content of file B in file A and replace it by content in file C. Thanks a lot!! Here is a sample of my question. e.g. (file A: a.txt; file B: b.txt; file... (3 Replies)
Discussion started by: dirkaulo
3 Replies

8. UNIX for Dummies Questions & Answers

How to append portion of a file content to another file when a certain pattern is matching?

Hi ladies and gentleman.. I have two text file with me. I need to replace one of the file content to another file if one both files have a matching pattern. Example: text1.txt: ABCD 1234567,HELLO_WORLDA,HELLO_WORLDB DCBA 3456789,HELLO_WORLDE,HELLO_WORLDF text2.txt: XXXX,ABCD... (25 Replies)
Discussion started by: bananamen
25 Replies

9. Shell Programming and Scripting

Script to remove same content from other file

Hi/ Hello all Guru here, I am trying to create script to remove same content from other file, already tested few idea and found that in unix it is limited to sort and uniq. There is many script for removing duplicate content however to delete all same content is non. Need your help and guide .... (7 Replies)
Discussion started by: Mr_47
7 Replies

10. Shell Programming and Scripting

Append timestamp create .trg file for all content of an unzipped archive

Hi, I have a test.zip archive that contains test.zip --> (file_1.txt, file_2.txt , file_3.txt) I need to unzip the file like this, file_1_timestamp.txt file_1_timestamp.trg file_2_timestamp.txt file_2_timestamp.trg file_3_timestamp.txt file_3_timestamp.trg Could you please let me know... (7 Replies)
Discussion started by: Shandel
7 Replies
trcs(1) 							   User Manuals 							   trcs(1)

NAME
trcs - convert text files from one codeset to other SYNOPSIS
trcs -C | -l | -h trcs [-s] [-f input-codeset ] [-t output-codeset ] [ file ]... DESCRIPTION
trcs is a program for translation of text files from one codeset to other. When exact translation is impossible it tries to make approxi- mations. For example pseudographic characters are approximated by ASCII characters in codesets that have no pseudographic characters and characters with diacritical marks are approximated by existing characters. If the option -s or --gen-script is given trcs will generate simple script that invokes tr(1) This is useful if you want to include this in your script or for faster conversion of many files. If none of -C, -s, -l, -h and their equivalents is given each file will be read assuming it is coded with codeset input-codeset On standard output it will be recoded so to use codeset output-codeset If there is no file given trcs will act as filter. Both input-codeset and out- put-codeset are case insensitive and default to `cp1251'. OPTIONS
-C, --copyright Display copying conditions and warranty information. -s, --gen-script Generates conversion script for given input and output encodings instead to convert text files. -l, --list List all known codesets with their aliases. -h, --help Display this help and exit. -f input-codeset, --from[=]input-codeset Codeset of the source. -f output-codeset, --to[=]output-codeset Codeset of the output. EXAMPLES
trcs -fcyrillic -t koi8-r letter.txt Convert letter.txt from ISO-8859-5 (cyrillic) to KOI8-R and output the result on standard output. trcs --from cp437 --to=mik --gen-script >ibm2mik Generates script ibm2mik for converting from CP437 to MIK. sh ibm2mik screen.txt Convert screen.txt from CP437 to MIK. Output the result on standard output. Without parameters ibm2mik acts as filter. AUTHOR
Anton Zinoviev <anton@lml.bas.bg>, <zinoviev@fmi.uni-sofia.bg> SEE ALSO
tr(1) Linux JUN 2000 trcs(1)
All times are GMT -4. The time now is 09:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy