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Asked: Dec 02,2020 In: UNIX

How do I preserve the leading 0 of a number using Unoconv when converting from a .csv file to a .xls file?

I have a 3 column csv file. The 2nd column contains numbers with a leading zero. For example: 044934343 I need to convert a .csv file into a .xls and to do that I'm using the command line tool ...

csv unix command-line xls unoconv

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Asked: Dec 02,2020 In: UNIX

How to read a value returned by a function in shell script?

I have written a shell script to pass array as an argument to a function and select one element of that array and return it back to caller. The script works fine unless I assign the return of my ...

bash shell unix scripting

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Asked: Dec 02,2020 In: UNIX

Simulate '&' likewise terminal custom shell

I'm trying to recreate my own terminal in C, and I'm in the part of running a process in the background: For example, in Linux terminal, if I type [email protected]:~$ firefox & It ...

c unix terminal

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Asked: Dec 02,2020 In: UNIX

Linux Redirecting a Directory to another Directory

I have two users with similar code directorys. One is a stable version, and the second is for dev purposes. Lets say we have: /home/dev/code and /home/stable/code Since the code was originally written ...

linux unix directory cron

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Asked: Dec 02,2020 In: UNIX

“tee” allows us to redirect output from a command - is there any simple way to output the command string being run itself too?

When looking at log files many times I wonder what options/parameters did I use when running a given command that generated this log file. Is there any simple way to output the command string being ...

linux unix

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Asked: Dec 02,2020 In: UNIX

Clock() and sleep in Unix

I created a while loop that stops with a timer managed with clock (), in this while loop I inserted a sleep and saw that the timer should block the loop after 3 seconds, because if the sleep lasts 5 ...

c unix timer operating-system clock

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Asked: Dec 02,2020 In: UNIX

oracle sqlplus select query with apostrophe converts to?

sqlplus -s ${uidpwd} > ${TEMP_FILE} 2>${LOG_FILE} << EOF SET LINESIZE 32767 SET PAGESIZE 0 set long 2000000000 set longchunksize 10000000 SET TRIMSPOOL ON SET RECSEP OFF SET HEADSEP OFF ...

oracle unix sqlplus

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Asked: Dec 02,2020 In: UNIX

How do I use awk to modify a yml file?

I'm trying to use awk to modify a yml file. The logic I want is that if the key specialKey already exists WITH a subkey subkey then do nothing, otherwise I want to insert the subkey (and its ...

shell unix awk

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Asked: Dec 02,2020 In: UNIX

Write a linux script that takes a directory as an argument and then prints the longest entry in that directory as an output

i just want to know how to do this take a directory as an argument and then prints the longest entry in that directory as an output. Any Ideas ?

linux unix

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Asked: Dec 02,2020 In: UNIX

Find files with specific extension and restrict permission to specific user

I am looking for command which can Find files with specific extension and also I want to restrict those files permission to specific user. I tried below command its listing all files and folders. find ...

linux shell unix command

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Asked: Dec 02,2020 In: UNIX

Why this code doesn't give any output nor does the execution terminates?

Whenever I run this code in codeblocks it compiles without any errors and warnings but when I execute it, it doesn't show any output nor does it terminate itself unlike other codes I've ran. #include &...

c windows unix

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Asked: Dec 02,2020 In: UNIX

How to subset filenames in bash `ls` output

So I have a list of files that start with a date (yyyymmdd) and then they have different endings. I would like to filter all dates and the find the uniq ones and count them. So something like this ...

bash unix grep

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Asked: Dec 02,2020 In: UNIX

Producing a new line using the write() system call [closed]

I've tried directly inserting '\n' into my write buffer as well as inserting '\' and 'n' as separate characters with no effect. All I get is one long line if text in my .txt file. How do I do this?

c unix

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Asked: Dec 02,2020 In: UNIX

Custom script output in unix

There is a question to add the arguments from the script CLI and then display in the following format: 10 + 20 + 30 = 60 If the input is: $ sum_for 10 20 30 The script that i have written is: #!/bin/...

bash shell unix

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Asked: Dec 02,2020 In: UNIX

How to always modify standard output in unix terminal?

I have a script that remove a particular sting. I want it to run every time when there is a standard output from any command, script or software. To do this I want the standard output to come through ...

unix stdout

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