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| comp.unix.shell Using and programming the Unix shell. |
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06/11/2007, 11h11
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#1 |
Messages: n/a
Hébergeur: |
Delete empty lines from a file
Hello all,
I need to delete empty lines from a file (with spaces only - not null records). The following command works only for null rows, but not in case of spaces: sed '/^$/d' filename thanks in advance! |
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06/11/2007, 11h18
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#2 |
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Messages: n/a
Hébergeur: |
Re: Delete empty lines from a file
2007-11-06, 03:11(-08), shulamitm:
> I need to delete empty lines from a file (with spaces only - not null > records). The following command works only for null rows, but not in > case of spaces: sed '/^$/d' filename [...] grep '[^[:blank:]]' filename awk NF filename -- Stéphane |
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06/11/2007, 11h35
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#3 |
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Messages: n/a
Hébergeur: |
Re: Delete empty lines from a file
shulamitm wrote:
> > I need to delete empty lines from a file (with spaces only - not null > records). The following command works only for null rows, but not in > case of spaces: sed '/^$/d' filename [GNU sed & grep] sed '/^ \+$/d' filename or grep -v '^ \+$' filename -- Best regards | Be nice to America or they'll bring democracy to Cyrus | your country. |
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06/11/2007, 11h39
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#4 |
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Messages: n/a
Hébergeur: |
Re: Delete empty lines from a file
On Nov 6, 1:18 pm, Stephane CHAZELAS <this.addr...@is.invalid> wrote:
> 2007-11-06, 03:11(-08), shulamitm:> I need to delete empty lines from a file (with spaces only - not null > > records). The following command works only for null rows, but not in > > case of spaces: sed '/^$/d' filename > > [...] > > grep '[^[:blank:]]' filename > > awk NF filename > > -- > Stéphane thanks! |
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