use of hyphen in #! line Post: 302112431

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1. Shell Programming and Scripting

add a hyphen every 2 characters of every line

I have a text file like this with hundreds of lines: >cat file1.txt 1027123000 1027124000 1127125000 1128140000 1228143000 > all lines are very similar and have exactly 10 digits. I want to separate the digits by twodigit and hyphens....like so, > 10-27-12-30-00 10-27-12-40-00...

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Hyphen char after shebang notation

Hi, I have a trivial question to ask, I am seeing in some shell scripts the '-' (hyphen) character following the first line of shell script (i.e) the shebang notation as follows: #!/bin/sh - #! /bin/bash - what does the hyphen signify? What will happen if it is not given explicitly?

3. UNIX Desktop Questions & Answers

How to remove text in each line after hyphen?

Hi, I'm trying to do something relatively simple. I have a txt file that has the following kinds of lines (and many more lines): CP19 Oahu - Maunawili Falls CP20 Oahu - Maunawili Falls AG12 Oahu - Maunawili Falls CP22 Oahu - Maunawili Falls, Local area AG14 Oahu CP141 KZ102 Kauai -...

4. Shell Programming and Scripting

delete the last hyphen

I want to check for more than one hyphen and then hold the first one and delete the rest of the hyphen. I try something like this sed 's/$*$\1/\1/' but this doesn't work. I try something like this sed 's/$*$-\1/ \1/g' but here the script delete all the hyphen. I want to go from this : I...

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How do I use awk to replace the first hyphen of a specific record?

6. Shell Programming and Scripting

Grep command to ignore line starting with hyphen

Hi, I want to read a file line by line and exclude the lines that are beginning with special characters. The below code is working fine except when the line starts with hyphen (-) in the file. for TEST in `cat $FILE | grep -E -v '#|/+' | awk '{FS=":"}NF > 0{print $1}'` do . . done How...

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sed - replacing a substring containing a hyphen

I'm attempting to replace a substring that contains a hyphen and not having much success, can anyone point out where i'm going wrong or suggest an alternative. # echo /var/lib/libvirt/images/vm888b-clone.qcow | sed -e 's|vm888-clone|qaz|g' /var/lib/libvirt/images/vm888b-clone.qcow

8. Shell Programming and Scripting

Insert a hyphen between two delimiters using sed

Hey guys, I have a file that is delimited by | and I am trying to write a sed command to convert this: abc|def||ghi|jkl||||mnop into this: abc|def|-|ghi|jkl|-|-|-|mnop The output I am getting out of: sed -e "s/+//g" /tmp/opt.del > /tmp/opt2.del is like: ...

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Replacing space with hyphen in a pattern.

I have a huge text file, about 52 GB. In the file, there are patterns like these: ] ] ] ]One can see that there is text within patterns such as and ], and I am only interested in ]. There is text before and after all these patterns too, for example, ''Anarchism''' is a ] that advocates ]...

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Deleting directory with leading hyphen in name

I asked this question last month in Stack Exchange (linux - delete directory with leading hyphen - Server Fault) and none of the answers supplied worked. I have somehow created a directory with a leading hyphen and cannot get rid of it. # ls -li | grep p 2621441 drwxr-xr-x. 2 root root...

LEARN ABOUT LINUX

git-hash-object

GIT-HASH-OBJECT(1)						    Git Manual							GIT-HASH-OBJECT(1)

NAME

       git-hash-object - Compute object ID and optionally creates a blob from a file

SYNOPSIS

       git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>...
       git hash-object [-t <type>] [-w] --stdin-paths [--no-filters] < <list-of-paths>

DESCRIPTION

       Computes the object ID value for an object with specified type with the contents of the named file (which can be outside of the work tree),
       and optionally writes the resulting object into the object database. Reports its object ID to its standard output. This is used by git
       cvsimport to update the index without modifying files in the work tree. When <type> is not specified, it defaults to "blob".

OPTIONS

       -t <type>
	   Specify the type (default: "blob").

       -w
	   Actually write the object into the object database.

       --stdin
	   Read the object from standard input instead of from a file.

       --stdin-paths
	   Read file names from stdin instead of from the command-line.

       --path
	   Hash object as it were located at the given path. The location of file does not directly influence on the hash value, but path is used
	   to determine what Git filters should be applied to the object before it can be placed to the object database, and, as result of
	   applying filters, the actual blob put into the object database may differ from the given file. This option is mainly useful for hashing
	   temporary files located outside of the working directory or files read from stdin.

       --no-filters
	   Hash the contents as is, ignoring any input filter that would have been chosen by the attributes mechanism, including the end-of-line
	   conversion. If the file is read from standard input then this is always implied, unless the --path option is given.

GIT

       Part of the git(1) suite

Git 1.8.5.3							    01/14/2014							GIT-HASH-OBJECT(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

add a hyphen every 2 characters of every line

Discussion started by: ajp7701

2. Shell Programming and Scripting

Hyphen char after shebang notation

Discussion started by: royalibrahim

3. UNIX Desktop Questions & Answers

How to remove text in each line after hyphen?

Discussion started by: euspilapteryx

4. Shell Programming and Scripting

delete the last hyphen

Discussion started by: thailand