Unix
BASH - Join on non-first column
I am trying to join 2 files together - both files are in CSV format - both files have the samecolumns. Here is an example of each file :[详细]
2023-04-11 03:26 分类：问答Unix fork tree that only forks on one child
Obviously homework, however I am not asking for anyone to do it for me but rather I just want direction. So far I have already written this开发者_开发技巧 as a fork process tree(which was a challenge[详细]
2023-04-11 03:17 分类：问答What's the difference between calling daemon() and calling fork(), setsid(), fork(), etc.?
I\'ve been looking at creating Unix dæmons, and there seem to be two methods. The long-winded one, which seems to come up when searching is to call fork(), setsid(), fork() again, chdir() to somewher[详细]
2023-04-11 02:48 分类：问答cursor won't move when using move() or wmove() when using the curses library
I have this program which prints the first 5 lines or more of a text file to a curses window and then prints some personalized input. but after printing the lines from the text file, the cursor wont\'[详细]
2023-04-11 02:31 分类：问答find whether a string is present directly or indirectly in all files
I have set of c files and I need to find out whether a particular header file is directly or indirectly present in all the files.[详细]
2023-04-11 00:40 分类：问答How Do I Programmatically Check for a Program's Existence?
Let\'s say I\'m writing something that depends on external programs, like svn.How do I check for their existence automatically, so I开发者_JAVA技巧 can print a helpful error message when they\'re abse[详细]
2023-04-10 23:34 分类：问答Unix shell functions, command substitution and exit
Please explain me about how to use unix shell function correctly. For example we have following functions f and g:[详细]
2023-04-10 21:36 分类：问答Search for multiple words in very large text files (10 GB) using C++ the fastest way
I have this program where I have to search for specific values and its line number in very large text file and there might be multiple occurences for the same value.[详细]
2023-04-10 20:21 分类：问答Bourne Shell Script problems
Im trying to make a script that looks for all files in a directo开发者_JAVA技巧ry that ends in .g and then once it finds that file, it will look for \"ABCDEFG\" in the file.[详细]
2023-04-10 18:36 分类：问答Grep command being reversed by special character?
I am trying to write a bash script which will search through a txt file for a string from another txt file which is stored within a variable.However the string has a number of special characters in it[详细]
2023-04-10 18:20 分类：问答
加载中,请稍侯......