10 More Discussions You Might Find Interesting
1. Homework & Coursework Questions
First month learning about the Linux terminal and it has been a challenge yet fun so far. We're learning by using a gameshell. I'm trying to display a certain line ( only allowed 1 command ) from a file only using the head or tail. I'm pretty about this answer:
head -23 history.txt | tail -1... (1 Reply)
Discussion started by: forzatekk
1 Replies
2. Shell Programming and Scripting
Hi All,
I thinking on how to accelerate the speed on calculate the dat file against the number of records CTRL file.
There are about 300 to 400 folder directories that contains both DAT and CTL files.
DAT contain all the flat files records
CTL is the reference check file for the... (3 Replies)
Discussion started by: ckwan
3 Replies
3. Shell Programming and Scripting
I'm working on a personal project, a multiplication quiz script for my kids. In it, the user's performance will be recorded and written to a file. After they've played it a little while, it will start to focus more on the ones that give them the most trouble-- that take a long time to answer or... (4 Replies)
Discussion started by: treesloth
4 Replies
4. UNIX for Dummies Questions & Answers
Hi,
My requirement is to append a date in format DDMMYYYYHHMISS at the end of first line of file which is HEADER. I am trying command
sed -i '1s/.*/&<date_format>/' <file_name>
Where <date_format>=`date +%m%d%Y%H%M%S`
I am somehow misisng the right quotes ti get this added in above... (2 Replies)
Discussion started by: sanjaydubey2006
2 Replies
5. UNIX for Advanced & Expert Users
Hi,
I have the following file,
ABC.txt:
ABC=123
DEF=234
FGH=345
Based on my validation and conditional processing it is observed that i need to comment or append # before DEF=234
so the same file ABC.txt should look as follows
ABC=123
#DEF=234
FGH=345
Sorry if its a... (6 Replies)
Discussion started by: mihirvora16
6 Replies
6. Shell Programming and Scripting
A friend contacted me recently with an interesting question. We got something worked out, but I'm curious what answers you all can come up with.
Given a shell script (in bash) that processes a bunch of data and appends it to a file, how would you append the date, time, and a filename to the... (6 Replies)
Discussion started by: malcolmpdx
6 Replies
7. Shell Programming and Scripting
hello,
how can I add one text line string at the line number one of a file.
thankx, (5 Replies)
Discussion started by: Ahmed waheed
5 Replies
8. Shell Programming and Scripting
It appears that this has been asked and answered in similar fashions previously, but I am still unsure how to approach this.
I have two files containing user information:
fileA
ttim:/home/ttim:Tiny Tim:632
ppinto:/home/ppinto:Pam Pinto:633
fileB
ttim:xkfgjkd*&#^jhdfh... (3 Replies)
Discussion started by: suzannef
3 Replies
9. Shell Programming and Scripting
Hi, I am a newb as far as shell scripting and SED goes so bear with me on this one.
I want to basically append to each line in a file a delimiter character and the line's line number e.g
Change the file from :-
aaaaaa
bbbbbb
cccccc
to:-
aaaaaa;1
bbbbbb;2
cccccc;3
I have worked... (4 Replies)
Discussion started by: pjcwhite
4 Replies
10. Shell Programming and Scripting
Hi,
Am trying to write a shell script which will append a header and a footer to an existing file. Header will contain details like the current date while the footer will contain the no: of records listed in the file.
I know we can use the CAT command, but i have no clue abt the syntax to... (4 Replies)
Discussion started by: brainstormer
4 Replies