Can you execute the command sh or bash or ksh to get an interactive Linux shell?
Can you put a Linux shell script into a file (for example script.sh and execute that script with one of the following three commands?:
Are the files you want to read really named one and two?
Do you want to merge file two into file one, or do you want to create a third file (three)?
Hello,
My apologies if this has been posted elsewhere, I have had a look at several threads but I am still confused how to use these functions. I have two files, each with 5 columns:
File A: (tab-delimited)
PDB CHAIN Start End Fragment
1avq A 171 176 awyfan
1avq A 172 177 wyfany
1c7k A 2 7... (3 Replies)
Hi,
I have 20 tab delimited text files that have a common column (column 1). The files are named GSM1.txt through GSM20.txt. Each file has 3 columns (2 other columns in addition to the first common column).
I want to write a script to join the files by the first common column so that in the... (5 Replies)
I have file1.txt
BGE179W1
BGE179W2
BGE179W3
BGE187W1
BGE187W2
BGE187W3
BGE194W1
BGE194W2
BGE194W3
BGE227W1
BGE227W2
BGE227W3
BGE288W1
BGE288W2
BGE288W3
BGE650W1
---------- Post updated at 12:41 AM ---------- Previous update was at 12:39 AM ---------- (5 Replies)
Hello everybody,
I have a double mission with some XML files, which is pretty challenging for my actual beginner UNIX knowledge. I need to extract some strings from multiple XML files and create a new XML file with the searched strings..
The original XML files contain the source code for... (12 Replies)
Hi Everyone,
I'm new here and I was checking this old post:
/shell-programming-and-scripting/180669-splitting-file-into-several-smaller-files-using-perl.html
(cannot paste link because of lack of points)
I need to do something like this but understand very little of perl.
I also check... (4 Replies)
Hi,
I'm having a xml file with multiple xml header. so i want to split the file into multiple files.
Sample.xml consists multiple headers so how can we split these multiple headers into multiple files in unix.
eg :
<?xml version="1.0" encoding="UTF-8"?>
<ml:individual... (3 Replies)
Hi all,
I need help to parse this xml file that has paragraphs broken in different lines and I would like to join in a single line.
I hope you can understand my explanation. Thanks for any help/direction.
The script could be in bash, awk, ruby, perl whatever please
In the output I want:... (8 Replies)
Hello,
This post is already here but want to do this with another way
Merge multiples files with multiples duplicates keys by filling "NULL" the void columns for anothers joinning files
file1.csv:
1|abc
1|def
2|ghi
2|jkl
3|mno
3|pqr
file2.csv:
1|123|jojo
1|NULL|bibi... (2 Replies)
Discussion started by: yjacknewton
2 Replies
LEARN ABOUT ULTRIX
return
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)